# Questions on Geometry: Rectangles answered by real tutors!

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 Geometry: Rectangles Solvers Lessons Answers archive Quiz In Depth

 Question 646732: The length of a rectangle is 5 centimeters greater than its width. The perimeter is 58 centimeters. What are the dimensions of the rectangle? Click here to see answer by MathLover1(6627)

 Question 647011: A=1w what is 1 if a is 48 and w is 8ft Click here to see answer by Alan3354(30993)

 Question 647227: the length of a rectangle is 6 ft longer than its width and the rectangle has a perimeter of 36 ft than what is its area? Click here to see answer by colliefan(239)

 Question 647480: Ednas garden is in the shape of a rectangle having sides 35 meters and 21 meters. How much fencing material will it take to enclose the garden? Click here to see answer by swincher4391(726)

 Question 647449: Two airplanes leave Chicago at the same time and fly in opposite directions. If one travels at 450 miles per hour and the other at 550 miles per hour, how long will it take for them to be 4000 miles apart? Click here to see answer by Edwin McCravy(8907)

 Question 647489: Bill has a circular swimming pool that has a radius of 7 feet. What is the approximate surface area of the pool? Click here to see answer by Alan3354(30993)

 Question 647761: The length of a rectangle is 3 meters less than 2 times the width. The perimeter is 24 meters. Find the width. The answer i keep coming up with is 3, but that is not it. Click here to see answer by Algebraic(50)

 Question 647826: The length of the rectangular lot is one less than the width. If the perimeter is 16 cm. What is the width of the lot in centimeter? Click here to see answer by rfer(12657)
 Question 647826: The length of the rectangular lot is one less than the width. If the perimeter is 16 cm. What is the width of the lot in centimeter? Click here to see answer by Algebraic(50)

 Question 648540: if the perimeter of a rectangle is 94yd, and the area of the rectangle is 90 yd^2. What are the dimensions of the rectangle. Click here to see answer by MathLover1(6627)

 Question 648764: the length of a calculus book is 2 inches more than the width. The perimeter is 36 inches. Find the width. Click here to see answer by rfer(12657)

 Question 648746: The sides of a rectangle are in a ratio 3:4. What is the length of the shorter sides of the rectangle if its perimeter is 42 cm? Click here to see answer by rfer(12657)

 Question 649143: A rectangle has a length of √8 yards, a width of √50 yards, and a height of √72 yards. What is the volume? Click here to see answer by MathLover1(6627)

 Question 649421: 1. Find the dimensions of the rectangle whose perimeter is 40 inches and whose area is a maximum. 2. An open box is formed from a piece of cardboard 12 inches square by cutting equal squares out of the corners and turning up the sides. Find the volume of the largest box that can be made in this way. 3. A closed box, whose length is twice its width, is to have a surface area of 192 square centimetres. Find the dimensions of the box when the volume is maximum. 4. What is the least amount of material needed to make an open right cylindrical can of volume 8 cubic inches? 5. Find the dimensions of the right circular cone whose volume is 3000 cubic centimetres if its lateral area is a minimum. 6. Find two numbers whose sum is 10 and the sum of the squares is a minimum. 7. Divide 20 into two parts such that the product of one part and the square of the other is maximum. 8. The electrical potential at a point (x,y) on the line extending from (0, 3) to (2, 0) is given by . At what point on this segment is the potential a minimum? 9. A man wishes to heat his basement by plugging a long extension chord connected to a number of heaters into a 120-volt socket at the house. The power P in watts radiated by the 30-omhs heater is given by , where n is the number of heaters plugged in. What would be the maximum amount of heat? 10. The power P generated by a 120-volt generator of internal resistance 5 ohms is given by watts, where is the current in amperes. For what current does the generator produce maximum power? Click here to see answer by lynnlo(4155)
 Question 649421: 1. Find the dimensions of the rectangle whose perimeter is 40 inches and whose area is a maximum. 2. An open box is formed from a piece of cardboard 12 inches square by cutting equal squares out of the corners and turning up the sides. Find the volume of the largest box that can be made in this way. 3. A closed box, whose length is twice its width, is to have a surface area of 192 square centimetres. Find the dimensions of the box when the volume is maximum. 4. What is the least amount of material needed to make an open right cylindrical can of volume 8 cubic inches? 5. Find the dimensions of the right circular cone whose volume is 3000 cubic centimetres if its lateral area is a minimum. 6. Find two numbers whose sum is 10 and the sum of the squares is a minimum. 7. Divide 20 into two parts such that the product of one part and the square of the other is maximum. 8. The electrical potential at a point (x,y) on the line extending from (0, 3) to (2, 0) is given by . At what point on this segment is the potential a minimum? 9. A man wishes to heat his basement by plugging a long extension chord connected to a number of heaters into a 120-volt socket at the house. The power P in watts radiated by the 30-omhs heater is given by , where n is the number of heaters plugged in. What would be the maximum amount of heat? 10. The power P generated by a 120-volt generator of internal resistance 5 ohms is given by watts, where is the current in amperes. For what current does the generator produce maximum power? Click here to see answer by ralhp09(3)

 Question 649688: I need the length and widith of an rectangle thats area = 20 sq m. It has to be whole numbers. Click here to see answer by Alan3354(30993)

 Question 650165: a perimeter of a rectangle is 78 feet. its length is seven feet more than its width. what are the dimensions of the rectangle Click here to see answer by sachi(392)

 Question 650774: the perimeter of a rectangle is 46 ft the width is 3ft less than twice the length finf the length and width of the rectangle Click here to see answer by MathLover1(6627)

 Question 650734: How do i find the area of a rectangle 803m by 216m? Click here to see answer by Seutip(9)

 Question 650881: If the base of a rectangle is increased by 10% and the area is unchanged by what percentage is the width decresed by and what is the formula? Click here to see answer by Alan3354(30993)

 Question 651881: The length of a rectangle is 9 inches more than thr width. The perimeter is 54 inches. Find the length and width of the rectangle Click here to see answer by rfer(12657)
 Question 651881: The length of a rectangle is 9 inches more than thr width. The perimeter is 54 inches. Find the length and width of the rectangle Click here to see answer by MathLover1(6627)

 Question 652271: If the perimeter of the rectangle is 44 and its hieght is 6 what is x? Click here to see answer by Shana-D77(122)

 Question 652482: The perimeter of a rectangle is 22 cm. One side is 5 cm longer than the other side. Find the lengths of the sides. Click here to see answer by shweta(56)

 Question 652547: The Perimeter of a rectangle is 46 ft. The width is 3ft less than twice the lenth. Find the lenth and width of the rectangle. Click here to see answer by mralgebra(3)

 Question 652552: If 9 is subtracted from the sum of two consecutive even integers, the result is 3 more than the larger of the integers. Find the integer. Click here to see answer by Shana-D77(122)
 Question 652552: If 9 is subtracted from the sum of two consecutive even integers, the result is 3 more than the larger of the integers. Find the integer. Click here to see answer by MathTherapy(1422)

 Question 653341: the length of a rectangular mailing label is 2 centimeters less than twice the width. The perimeter is 50 cenimeters. find the dimensions of the label L= W= Click here to see answer by solver91311(16877)

 Question 653714: Martha would like a rectangular garden at the back of her yard. If she wants the garden to be 6 1/2 ft wide and she wants the garden to have an area of 53 sq ft, find the length of her garden. Click here to see answer by josmiceli(9669)

 Question 653779: The dimensions around a basketball court is 196 feet. If the length of the court is 8 feet more than twice the width, find the dimensions of the court. Click here to see answer by checkley79(3050)

 Question 653733: If the length of one side of a square is 12.0 , what is the perimeter of the square? Click here to see answer by best82(13)

 Question 253415: 4. If the perimeter of a rectangle is 8√2 cm, what is the smallest possible value of the length of one of its diagonals in cm? I've tried: let length be l, width be w, and diagonal be d let l be x, then w will be: (8√2-2x)/2 = 4√2-x d^2=l^2+w^2 =x^2+(4√2-x)^2 =x^2+(32-8√2x-x^2) =32-8√2x... Click here to see answer by ralhp09(3)

 Question 654843: sonja needs to borrow \$2,251 to pay for her college classes. Sallie Mae is offering her a 4.5% simple interest loan with an interest charge of \$405.18 over the life of the loan. How many years is Sallie Mae giving her to pay back the loan with interest? Click here to see answer by josmiceli(9669)

 Question 654892: The height of an object thrown upward with an initial velocity of 96 feet per second is given by the formula h = −16t2 + 96t, where t is the time in seconds. How long will it take the object to reach a height of 144 feet? Click here to see answer by DrBeeee(378)

 Question 654900: I would just like to have it explained to me in words how to get the expression for this question. I would love the answer yes, but I want to know how to get it. Yardbird Landscaping has 40 m of fencing with which to enclose a rectangular garden. If the garden is x meters long, express the garden's area as a function of the length. Thanks for the help. Click here to see answer by ewatrrr(10682)

 Question 654693: if the area of a square is 81 how do i find the lenghth??? Click here to see answer by jim_thompson5910(28550)

 Question 655241: Please help me with this! A rectangle is 2 feet wide and 3 feet long. Each side is increased by the same amount to give a rectangle with twice the area of the original one. Find the dimensions of the new rectangle. (Hint: Let x feet be the amount by which side is increased.) Thank You! Click here to see answer by lwsshak3(6491)

 Question 656794: How to find the dimensions of a rectangle without having the perimeter Click here to see answer by solver91311(16877)

 Question 656851: the width of a rectangle is one third its length. if the area of the rectangle is 20sq.inch.,what are the dimension of the said figure? Click here to see answer by shweta(56)

 Question 656843: the length of a rectangle is three less than twice the width and its equal to 44 sq. cm .find the dimension of rectangle. Click here to see answer by checkley79(3050)

 Question 656836: The length of a room is 4 feet less than twice its width. The perimeter of the room is 58 feet. What is the length of the room? How Would I solve this ? Click here to see answer by checkley79(3050)

 Question 656960: What is the meaning ^ in mathematical symbol? Click here to see answer by nerdybill(6958)
 Question 656960: What is the meaning ^ in mathematical symbol? Click here to see answer by solver91311(16877)

 Question 657032: The length of a rectangle is four times the width. It's perimeter is 90m. What are its dimensions? Using P=2l plus 2w. Click here to see answer by solver91311(16877)

 Question 657795: Consider a rectangle that has a diagonal of 20 feet and a perimeter of 52 feet. Find the area of this rectangle. Click here to see answer by kevwill(135)

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