Basic Math Examples

 $\begin{array}{r} b_{1} = & 1 \\ b_{2} = & 1 \\ h = & 7 \end{array}$

The area of a trapezoid is equal to $\frac{1}{2}$ times the height times the sum of the bases $b_{1} + b_{2}$ .

$\frac{1}{2} \cdot (h e i g h t) \cdot (b_{1} + b_{2})$

Substitute the values of the height $h = 7$ and bases ( $b_{1} = 1$ and $b_{2} = 1$ ) into the formula for the area of a trapezoid.

$\frac{1}{2} \cdot 7 \cdot (1 + 1)$

Combine $\frac{1}{2}$ and $7$ .

$\frac{7}{2} \cdot (1 + 1)$

Add $1$ and $1$ .

$\frac{7}{2} \cdot 2$

Cancel the common factor of $2$ .

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Cancel the common factor.

$\frac{7}{2} \cdot 2$

Rewrite the expression.

$7$

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