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user100 [1]
3 years ago
13

The diameter of a circle is 21 inches. Find the area of the circle. (Use 22/7 as the approximation of pi.)

Mathematics
1 answer:
bixtya [17]3 years ago
7 0

Step-by-step explanation:

Area of a circle is pi times r-square

\pi \:  {r}^{2}

So...

\frac{22}{7}  \times  \frac{21}{2}  \times  \frac{21}{2}  =   \frac{22 \times  {21}^{2} }{28}

<em>Do the rest yourself, my calculator and pen are not </em><em>handy</em><em>.</em><em> </em><em>Sorry</em>

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