Pre-Algebra Examples

 $\begin{array}{r} b = & 11 \\ h = & 15 \end{array}$

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 $b = 11$ and height $h = 15$ into the formula for the area of a triangle.

$\frac{1}{2} \cdot 11 \cdot 15$

Step 3

Combine $\frac{1}{2}$ and $11$ .

$\frac{11}{2} \cdot 15$

Step 4

Multiply $\frac{11}{2} \cdot 15$ .

Tap for more steps...

Step 4.1

Combine $\frac{11}{2}$ and $15$ .

$\frac{11 \cdot 15}{2}$

Step 4.2

Multiply $11$ by $15$ .

$\frac{165}{2}$

Step 5

The result can be shown in multiple forms.

Exact Form:

$\frac{165}{2}$

Decimal Form:

$82.5$

Mixed Number Form:

$82 \frac{1}{2}$