87.7k views
5 votes
Please help ASAP 20 points to whoever helps!

Please help ASAP 20 points to whoever helps!-example-1
User Misiakw
by
4.8k points

1 Answer

4 votes

Answer:

A. 232 in²

B. 216 in²

Explanation:

A. Box A is a cuboid/rectangular prism.

Surface area of box A = 2(LW + LH + WH)

L = 10 in

W = 2 in

H = 8 in

Surface area = 2(10*2 + 10*8 + 2*8)

= 2(20 + 80 + 16) = 2(116)

Surface area = 232 in²

B. Surface area of B = surface area of cube

Surface area of cube = 6s²

s = 6 in

Surface area = 6(6²)

= 6(36)

= 216 in²

User Luda
by
5.1k points