Question

What is the triangle's base, b?

Answer 1

Answer:

6.928 or 6.93

Step-by-step explanation:

\sqrt{8^{2}-4^{2}}

Answer 2

Answer:

The triangle's base is 9 inches.

Step-by-step explanation:

The area of a triangle is calculated with the base × perpendicular height × $\frac{1}{2}$.

We already know the area is 18 square inches and the perpendicular height is 4 inches, so we can calculate the base.

4 × b × $\frac{1}{2}$ = 18

2 × b = 18

b = 18 ÷ 2

b = 9