# If the diameter of a circle is 14, what is the area?

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Apr 27, 2017

$A = 153.9$ square units

#### Explanation:

If you are not familiar with the formula for finding the area by using the diameter, you will have to find the radius first:

$r = \frac{d}{2}$

$r = \frac{14}{2} = 7$

$A = \pi \cdot {r}^{2} \text{ } \leftarrow$ formula for area

$A = \pi \times {7}^{2}$

$A = 153.9$ square units

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