Question

find the surface
area of the
triangular prism.
start by finding the
area of 1 triangle.
(formula: a = bh÷2)
area of 1 triangle: ? cm²
area of both triangles
area of the
bottom rectangle
area of the back
rectangle
area of the front
rectangle

Explanation:

Step1: Identify base and height of triangle

The triangular face is a right triangle with base \( b = 6 \, \text{cm} \) and height \( h = 6 \, \text{cm} \).

Step2: Apply triangle area formula

Using the formula \( a=\frac{bh}{2} \), substitute \( b = 6 \) and \( h = 6 \):
\( a=\frac{6\times6}{2} \)
\( a=\frac{36}{2}=18 \)

Answer:

18