Basic Math Examples

 $\begin{array}{r} b_{1} = & 8.4 \\ b_{2} = & 3.6 \\ h = & 4.2 \end{array}$

Step 1

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

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

Step 2

Substitute the values of the height $h = 4.2$ and bases ( $b_{1} = 8.4$ and $b_{2} = 3.6$ ) into the formula for the area of a trapezoid.

$\frac{1}{2} \cdot 4.2 \cdot (8.4 + 3.6)$

Step 3

Combine $\frac{1}{2}$ and $4.2$ .

$\frac{4.2}{2} \cdot (8.4 + 3.6)$

Step 4

Simplify the expression.

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Step 4.1

Divide $4.2$ by $2$ .

$2.1 \cdot (8.4 + 3.6)$

Step 4.2

Add $8.4$ and $3.6$ .

$2.1 \cdot 12$

Step 4.3

Multiply $2.1$ by $12$ .

$25.2$