Question

guided practice
right triangular prism
use the formula la = ph to find the lateral area of the prism.
in²
type your answer and then click or tap done.
surface areas of prisms and cylinders

Explanation:

Step1: Find perimeter of triangular base

The triangular base has sides 3 in, 4 in, 5 in. Perimeter $p = 3 + 4 + 5 = 12$ in.

Step2: Calculate lateral area

Use formula $LA = p \times h$ where $h = 6$ in. $LA = 12 \times 6 = 72$ in².

Answer:

72 in²