Questions on Geometry: Area and Surface Area answered by real tutors!

Tutors Answer Your Questions about Surface-area (FREE)

Question 321187: Find the surface area of a cube with an edge length of 5 ½ yd.
Click here to see answer by josmiceli(9817)

Question 321121: find the area of a regular octagon with one edge that measures 2 units

Click here to see answer by Alan3354(31513)

Question 321334: My question is as follow:
sally is making a cover for a round table.When finished, the cover will fit exactly with no excess hanging off. Sally has to cut the fabric circle with a 4 inch larger diameter than the table to allow for hemming. if the table has a diameter of 58 inches, how much fabric does Sally need? (Use 3.14 for pie. Round to 2 decimal places)
I try it on my own but keep getting the wrong answer. Thanks
Click here to see answer by solver91311(17077)

Question 321359: A rectangular swimming pool has a diagonal of 40 meters and makes a 30 degree angle with the length of the pool. What is the area of the pool?
Okay, I drew the shape and I immediately found out that the diagonal seperates the rectangle into two 30-60-90 degree triangles, and the Area is equal to length times width, and the pythagorean theorem must be used, but I got stuck, I mean how am I supposed to find the length and width here? Am I supposed to use the trigonometric equations here? (eg: sin theta = hypotenuse/opposite) Thank you in advance!
Click here to see answer by ankor@dixie-net.com(15746)

Question 321472: A square has two corners of a diagonal at (6, 8) and (2, 4). What is its area?
Click here to see answer by Alan3354(31513)

Question 321700: The surface area of a rectangular prism is 36cm squared. Find the volume of the prism in terms of Width if the height equals 2.
Click here to see answer by solver91311(17077)

Question 321773: If all of the following triangles have the same perimeter, which has the greatest area?
A. a Right triangle with legs of equal length
B. An equilateral triangle
C. an obtuse triangle
D. a triangle whose sides are all different lengths
E. an isosceles triangle whose unequal side is the shortest side
Click here to see answer by stanbon(57960)

Question 321928: A right cylinder has a radius of 8 units and a height of 14 units What is its surface area?
Click here to see answer by mananth(12270)

Question 322121: A rectangle has an area given by A=-6w^2+72w . What is the maximum area for this rectangle? (Hint: Where does the maximum value occur?)
Click here to see answer by JBarnum(2044)

Question 322108: The volume of a cone is cubic kilometers. If the radius of the base is 7 kilometers, what is the height of the cone?
Click here to see answer by Alan3354(31513)

Question 322109: Evan is painting a stool that has a cylindrical seat and four rectangular prism legs. The seat has a diameter of 8 inches and a height of 2 inches. Each leg is 2 inches by 2 inches by [ ] inches. How much area will Evan have to paint?
Click here to see answer by checkley77(12569)

Question 322188: A metal worker is building a wire frame for a cubic box that is to have a volume of 27 cubic feet. What is the total length of the wire the metal worker will need?
Click here to see answer by solver91311(17077)

Question 322356: What is the approximate total surface area of a cylinder with a diameter of 46 and height of 142
Click here to see answer by checkley77(12569)

Question 322799: Find the surface area of a right circular cone with radius of 5cm and height of 12cm
Click here to see answer by rfer(12729)

Question 322926: How does the cross sectional area differ from the area of a square or a circle?
Click here to see answer by Alan3354(31513)

Question 322910: hi, a square shaped garden has a side of 6ft. whats the are? thx.
Click here to see answer by Fombitz(13828)

Question 323115: How to get the radius of a circle if the given measurement is the measurement of a rectangle?
Click here to see answer by Jk22(389)

Question 323117: How would I proceed to calculate the following:
a. Cost per cubic foot = x
Calculate cost if dimensions are 30"x18"x2"

b. How does one calculate cubic root of a figure? (My calculator only has a square root button!)
Thanks in advance,
Ranjit.
Click here to see answer by Alan3354(31513)

Question 323217: A utility company is laying a new cable over a strech of 7.5 kilometers. Two-fifths of the total length of the cable is fiber optic, and the rest of the cable is coaxial. What is the length in meters of the coaxial portion of the cable?
Click here to see answer by rfer(12729)

Question 323607: I am trying to figure out the surface area of a cube in inches. The height, width and length each equal 4 inches.I know volume would be height X width X length but I am not sure if the surface area would equal the volume. Please help.
Click here to see answer by JBarnum(2044)

Question 323652: how to find the area of the square that is 12 inches wide. (the answer will be in square inches
Click here to see answer by solver91311(17077)

Question 323949: what is the total surface of a cube is 78 square inches
Click here to see answer by Fombitz(13828)

Question 324012: What is the diameter of a cylinder that has a volume of 20,000 cubic millimeters and a height of 110 millimeters?
Click here to see answer by solver91311(17077)

Question 324288: A CYLINDER has a circular base with a diameter of 14ft and a height of 8ft. what is the surface area?
Click here to see answer by nyc_function(2733)

Question 324641: what is the surface area of a cylinder that is 14ft and 9ft?
Click here to see answer by Fombitz(13828)

Question 324987: what is the height of a triangle if the base is 12 m and the area is (18x - 6) m squared?
Click here to see answer by stanbon(57960)

Question 325141: one of the equal sides of an equilateral triangle is 5 cm long. What is the area of the triangle?
Click here to see answer by vleith(2825)

Question 325505: The length of a rectangle is six times its length. If the area of a rectangle is 600ft squared, then what it its perimeter?
Click here to see answer by rfer(12729)

Question 325920: A box contains four red marbles, seven white marbles, and five blue marbles. If two marbles are drawn one at a time, find the probabilty that both marbles are white if the draws are made as folows.
(a) with replacement_______ (b) without relpacement________
Click here to see answer by Apathious(24)

Question 325919: suppose you have three straight sticks of lenghts 10cm, 20cm, and 31cm. Can you arrange these sticks into a triange? If not, why not?
Click here to see answer by Fombitz(13828)

Question 325916: find the surface area of a right circular cylinder that 6 cm. in diameter and is 12 cm. in height.
Click here to see answer by mananth(12270)

Question 325909: a circular pool has a circumference of about 40 meters. Find the diameter of the pool in meters
Click here to see answer by mananth(12270)

Question 325922: professor Abel corrected 20 papers and found the mean to be 70. He then corrected 30 more papers and found the mean for this group to be 80. What is the mean of he combined group of 50 students?
Click here to see answer by AAfter Search(61)

Question 326085: Find the total surface area of a tent shaped object as follows:
Base is 12 X 6
Each rectangle is 12 X 8.54
Each triangle is 6 X 8.54 with a height of 8
Click here to see answer by checkley77(12569)

Question 326279: A regular pyramid has a square base. One side of the base has a length of 12 units and the lateral surface area is 240 square units. Find the altitude of the pyramid.
Click here to see answer by nyc_function(2733)

Question 326228: A regular pyramid has a square base. One side of the base has a length of 12 units and the lateral surface area is 240 square units. Find the altitude of the pyramid.
Click here to see answer by nyc_function(2733)

Question 326330: A garden is 78sq yd and the length is 5 less than 3times the width. What is the dimensions?
Click here to see answer by mananth(12270)

Question 326611: what is the lateral and surface areas of a cube with edge length of 15 inches?
Click here to see answer by solver91311(17077)

Question 326954: compute 200/198
Click here to see answer by stanbon(57960)

Question 327306: If the maintenance men are going to paint a spherical water tower whose radius is 30 feet and each gallon of paint covers 150 square feet of metal, how many gallons of paint must they have to give the tower one coat of paint?
Can you please help me with that question? thanks
Click here to see answer by Alan3354(31513)

Question 327622: A cone is mounted on the centre of the flat surface of a hemi sphere of radius 14 cm. Radius of the cone is 7 cm. If the height of cone is 7 cm then Find surface area of it.
Click here to see answer by mananth(12270)

Question 327624: A circus tent is in the shape of a cone on the top of the cylinder whose height is 3 m and its diameter is 105 m, slant
height of the cone is 63 m. How much is the total area of the canvas used to make this tent?

Click here to see answer by mananth(12270)

Question 327753: I've tried this a few times but when I go to check, it is wrong.
What is the surface area of a soccer ball that has the circumference of 28 inches?
Click here to see answer by Alan3354(31513)

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