Question

the formula for the area of a triangle is ( a=\frac{1}{2}bh ) where ( b ) is the base and ( h ) is the height
what is the area of this triangle?
360 in ( ^{2} )
180 in ( ^{2} )
90 in ( ^{2} )
72 in ( ^{2} )

Explanation:

Step1: Substitute values into formula

Given \( b = 15\) in and \( h=12\) in, use \( A=\frac{1}{2}bh\).
\(A=\frac{1}{2}\times15\times12\)

Step2: Calculate the product

First, \(15\times12 = 180\). Then, \(\frac{1}{2}\times180\).
\(A = 90\) in²

Answer:

\(90\) in²