Question

What is the surface area of a rectangular prism with a base length of 8 yd, a base width of 6 yd, and a height of 4 yd? A. 104 yd2 B. 112 yd2 C. 192 yd2 D. 208 yd2

Answer 1

How to find the surface area of Rectangular Prisms:

Find the area of two sides (Length*Height)*2 sides;
Find the area of adjacent sides (Width*Height)*2 sides;
Find the area of ends (Length*Width)*2 ends;
Add the three areas together to find the surface areais .


The surface area of a rectangular prism is 8*6 + 6*4 + 8*4 = 48 + 24 + 32 = 72 + 32 = 104 yd2.
The correct answer is A.

Answer 2

SA=2(LW+LH+WH)
L=8
W=6
H=4
SA=2(8*6+8*4+6*4)
SA=2(48+32+24)
SA=2(104)
SA=208 yd^2

answer is D