Find the surface area of a rectangular prism with a height of 11, a length of 15, and a width of 10.
Study these sites.
http://www.aaamath.com/g79_sux3.htm
http://www.math.com/tables/geometry/surfareas.htm#rec
I'll be glad to check your answer.
To find the surface area of a rectangular prism, you need to sum up the areas of all its sides.
A rectangular prism has 6 faces - 2 identical top and bottom faces, and 4 identical side faces.
To find the area of the top and bottom faces, multiply the length by the width:
Area of top and bottom faces = length * width = 15 * 10 = 150
To find the area of the side faces, multiply the height by the width, and multiply the result by 2 (since there are two identical side faces):
Area of side faces = 2 * height * width = 2 * 11 * 10 = 220
Now, add up the areas of all the faces to find the total surface area:
Total surface area = area of top and bottom faces + area of side faces
= 150 + 220
= 370
Therefore, the surface area of the rectangular prism is 370 square units.