Answer :
The amount of plywood needed by Trenton = total surface area of the triangular prism-shaped ramp = 21 ft².
What is the Surface Area of a Triangular Prism?
Total surface area of a triangular prism = (perimeter of triangular base × length of prism) + 2(area of triangular base) = (s1 + s2 + s3 × L) + 2(1/2 × b ×h).
The amount of plywood needed to cover the ramp = total surface area of the triangular prism-shaped ramp.
We are given the parameters:
- s1 = 2 ft
- s2 = 1.5 ft
- s3 = 2.5
- L = 3 ft
- b = 2 ft
- h = 1.5 ft
Total surface area of the triangular prism-shaped ramp = (s1 + s2 + s3)L + 2(1/2 × b ×h) = (2 + 1.5 + 2.5)3 + 2(1/2 × 2 ×1.5)
= (18) + (3)
Total surface area = 21 ft²
Trenton will need 21 square feet of plywood.
Learn more about the total surface area of a triangular prism on:
https://brainly.com/question/16147227
#SPJ1