Question

Eddie built the ramp shown to train his puppy to do tricks. Use the figure for 8-9. Dementions of the area; 20 in, 12in, 20 in, 24 in, 16, 16, 16 in. Help!

Answer 1

The surface of the ramp:
A = 2 * ( 48 + 16 ) / 2 * 12 + 2 * 20 * 24 + 16 * 24 =
= 768 + 960 + 384 = 2,112
Answer: The surface area is 2,112 cubic inches.