Question

The area of a triangle is 36 square inches (in^2). It's altitude (h) is 9 inches. How long is it's base?

Answer 1

The length of the base can be determined as,

$\begin{gathered} A=\frac{1}{2}bh \\ 36in^2=\frac{1}{2}b(9in) \\ b=\frac{36in^2\times2}{9in} \\ b=8in \end{gathered}$

Thus, the length of the base is 8 in.