To find the surface area of a rectangular prism, we use the formula:
Surface Area = 2(lw + lh + wh)
Given:
Length = 18 mm
Height = 10 mm
Width = 2 mm
Substitute the values into the formula:
Surface Area = 2(18*2 + 18*10 + 2*10)
Surface Area = 2(36 + 180 + 20)
Surface Area = 2(236)
Surface Area = 472
Therefore, the surface area of the rectangular prism is 472 square millimeters.
Find the surface area of a rectangular prism whose length is 18 millimeters, height is
10 millimeters, and width is 2 millimeters. (1 point)
1 answer