Question

A rectangular prism is 24 feet by 20 feet by 15 feet. Find the surface area

Answer 1

Surface area is given by;

S.A = 2(wl + hl + hw)

From the question;

l =24 w = 20 h = 15

substitute into the formula;

S.A =2 ( 20*24 + 15*24 + 15*20)

= 2( 480 +360 + 300)

= 2(1140)

= 2280 ft²