Answer
60 $in^{2}$
Work Step by Step
Given A triangle’s altitude to the 15-in. side measures 8 in.
So the base measures 8 in. and height measures 15 in.
Area of triangle = $\frac{1}{2}$b* h
= $\frac{1}{2}$* 8 * 15
= 4 * 15
= 60 $in^{2}$
Area of triangle = 60 $in^{2}$
