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

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Question 252568: How do you find the area of a parallelogram with sides 10 feet and 40 feet and an included angle of 30 degrees? Do you just do b*h ( 10*40)?
Click here to see answer by drk(1908)

Question 252578: The length of a rectangle is (5x+1)ft. The width is (2x-1)ft. find the area of the rectangle in terms of the variable x.
Click here to see answer by drk(1908)

Question 252721: A box is x inches high, (2x + 3) inches wide, and (2x + 5) inches long. In terms of x, what is the volume (V) of the box?
Click here to see answer by drk(1908)

Question 252806: How do you find the area of a parallelogram with sides 6 and 10 and an included angle of 30 degrees? Also, how do you find the area of a square with a radius of 9 inches? Please help as soon as possible. Thank you.
Click here to see answer by richwmiller(9132)

Question 252910: The area of a right triangle is 12 square feet. the length of the rug is two feet more than the width. what is the width
Click here to see answer by drk(1908)

Question 253030: One of my Homework Questions is Find the area of a isosceles right triangle with a hypotnuse of 10 cm. I know to get from hyp to short leg you divide by 2 ( 5) and since it is isosceles I'm assuming that the other leg is 5 then you would just do 1/2 ( 5 * 5 ) but don't the long and short leg together have to be greater than the hyp? I'm so confused. Please help.
Click here to see answer by richwmiller(9132)

Question 253147: what is the volume of a cube with an edge length of 4 inches?
Click here to see answer by edjones(7569)

Question 253158: Identify 2 planes in the room, other than its wall, ceiling and floor which are
a. parallel
b. perpendicular
c.parallel to the floor
d. perpendicular to the floor
e. parallel to an edge
f. perpendicular to an edge on the floor
No given drawing
Click here to see answer by richwmiller(9132)

Question 253225: The area of a trapezoid is found using A = 1/2 (b1 + b2)h where b1 is one base, b2 is the second base, and h is the height. Suppose a trapezoid has a base of 5x, another base of 9x, and a height of 8xy. What is the area?
Click here to see answer by Nikki456(9)

Question 253270: A trapezoid has dimensions of base 1 = 2 inches, base 2 = 4 inches, and a height of 6 inches. What is the area of the trapezoid?

Click here to see answer by Greenfinch(383)

Question 253320: If the points A(-1,1) and B(1,2) lie on a line m, what is the slope of line m?

Click here to see answer by jim_thompson5910(28476)

Question 253320: If the points A(-1,1) and B(1,2) lie on a line m, what is the slope of line m?

Click here to see answer by palanisamy(496)

Question 253324: Which of the following represents the ratio of the area of the circle to its circumference?
(1) 2:r (3) 1:2r
(2) r2:4 (4) r:2
Click here to see answer by Alan3354(30928)

Question 253324: Which of the following represents the ratio of the area of the circle to its circumference?
(1) 2:r (3) 1:2r
(2) r2:4 (4) r:2
Click here to see answer by richwmiller(9132)

Question 253330: If the measure of each exterior angle of a regular polygon is 20 degrees, how many sides does the polygon have?
(1) 2 (3) 18
(2) 9 (4) 1
Click here to see answer by palanisamy(496)

Question 253476: Help I've forgotton my math!
I have a rectangle 9.75" X 6.5" whose area I need to increase by 11%. How do I figure this increase such that I will end up with the measurements for the sides of the new larger rectangle?

Click here to see answer by Greenfinch(383)

Question 253474: A right circular cone has an altitude of 20 cm and a base of radius 4 cm. Find the lateral surface area and the total surface area.
Click here to see answer by Greenfinch(383)

Question 253473: Find the radius of a cone whose lateral surface area is 2900π m2 and whose slant height is 100 m.
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Question 253470: Find the total area of a cone whose slant height is 6 units and whose diameter is 4 units.
Click here to see answer by Greenfinch(383)

Question 253471: What is the slant height of a right circular cone whose lateral surface area is 66π units2 and whose radius is 6 units?
Click here to see answer by drk(1908)

Question 253471: What is the slant height of a right circular cone whose lateral surface area is 66π units2 and whose radius is 6 units?
Click here to see answer by Greenfinch(383)

Question 253469: Find the surface area and the lateral area of a cylinder with a height of 5 m and a radius of 0.75 m.
Click here to see answer by drk(1908)

Question 253469: Find the surface area and the lateral area of a cylinder with a height of 5 m and a radius of 0.75 m.
Click here to see answer by Greenfinch(383)

Question 253468: Find the slant height of a regular pyramid whose base is a hexagon with one side measuring 30 units and whose altitude is 10√3 units.
Click here to see answer by Greenfinch(383)

Question 253467: 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 Greenfinch(383)

Question 253465: Pyramid A-BCD is a regular pyramid. Use the given information and find the lateral surface area.
Click here to see answer by Greenfinch(383)

Question 253466: The base of a hexagonal pyramid has a perimeter of 45 units and a slant height of 10 units. Find the lateral area.
Click here to see answer by richwmiller(9132)

Question 253464: If a regular square pyramid has a slant height of 7 units and a base with an edge of 6 units, then what is the area of the base?
Click here to see answer by richwmiller(9132)

Question 253464: If a regular square pyramid has a slant height of 7 units and a base with an edge of 6 units, then what is the area of the base?
Click here to see answer by Greenfinch(383)

Question 253463: In a regular pyramid, AR is 8 feet long. Find the area of one face and the total surface area.
Click here to see answer by richwmiller(9132)

Question 253461: Find the lateral surface area of the right prism whose base is a rectangle. Assume that the altitude is 5 units.

Click here to see answer by richwmiller(9132)

Question 253322: What is the area of triangle ABC, if AB = 8 and M(angle)= 30?
Click here to see answer by richwmiller(9132)

Question 253325: A certain set contains three triangles: scalene, isosceles, and equilateral. If a triangle is selected at random, what is the probability that at least one of its medians is also an altitude?
(1) 0 (3) 2/3
(2) 9 (4) 1
Click here to see answer by edjones(7569)

Question 253526: The length of a rectangle is twice its width. If the perimeter of the rectangle is 30IN , find its area.
so far i know, l=2w 2w(w)=30 2w^2=30 w^2=15 i know i need to get rid of the square root

Click here to see answer by blwinbbbles(106)

Question 253730: A box with a lid is to be made from a 48-by-24-inch piece of cardboard by cutting and folding. If the box must be at least 6 inches high, what size squares should be cut from the two corners in order for the box to have a volume of 1000 cubic inches?
THANK YOU IN ADVANCE.
Click here to see answer by richwmiller(9132)

Question 253811: If W=6 inches, L=6 inches, and H=24, what is the volume of the pyramid?
Click here to see answer by drk(1908)

Question 253944: The area of a rectangle is 6720 square feet. The ratio of the width to the length is 7:15. Find the length and the width.
Click here to see answer by ankor@dixie-net.com(15622)

Question 254125: A farmer wishes to put a diagonal brace on his gate. How long should the brace be if the gate is rectangular 12 by 5 ft
Click here to see answer by nerdybill(6948)

Question 254125: A farmer wishes to put a diagonal brace on his gate. How long should the brace be if the gate is rectangular 12 by 5 ft
Click here to see answer by unlockmath(1599)

Question 254124: can 10, 20 and 30 can be the lenghts of the sides of the triangle? right triangle? Explain
Click here to see answer by dabanfield(803)

Question 254232: A box with a lid is to be made from a 48-by-24-inch piece of cardboard by cutting and folding, as shown in the figure. if the box must be at least 6 inches high, what size squares should be cut from the two corners in order for the box to have a volume of 1000 cubic inches?
(couldn't found figure, so please give me at least starting if u cant do without figure. i really need this problem to be done!!! plZZZZ). (thank you very much!!!!!)
Click here to see answer by solver91311(16868)

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