Find the Area triangle (9)(15)

 $\begin{array}{r} b = & 15 \\ h = & 9 \end{array}$

Step 1

The area of a triangle is equal to $\frac{1}{2}$ the base times the height.

$\frac{1}{2} \cdot (b a s e) \cdot (h e i g h t)$

Step 2

Substitute the values of the base $b = 15$ and height $h = 9$ into the formula for the area of a triangle.

$\frac{1}{2} \cdot 15 \cdot 9$

Step 3

Combine $\frac{1}{2}$ and $15$ .

$\frac{15}{2} \cdot 9$

Step 4

Multiply $\frac{15}{2} \cdot 9$ .

Combine $\frac{15}{2}$ and $9$ .

$\frac{15 \cdot 9}{2}$

Multiply $15$ by $9$ .

$\frac{135}{2}$

Step 5

The result can be shown in multiple forms.

Exact Form:

$\frac{135}{2}$

Decimal Form:

$67.5$

Mixed Number Form:

$67 \frac{1}{2}$