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

Explanation:

Step1: Identify base and height of the triangle

From the diagram, the base \(b = 6\) cm and the height \(h=6\) cm.

Step2: Apply the area formula for a triangle

The formula for the area of a triangle is \(a=\frac{bh}{2}\). Substitute \(b = 6\) and \(h = 6\) into the formula:

$$ a=\frac{6\times6}{2}=\frac{36}{2}=18 $$

Answer:

\(18\)