3 years ago

The area of a circle is 78.5 cm2. Find the length of the radius of the circle . Use pi = 3.14

1 answer:

Grace [21]3 years ago

5 0

Answer:

r= 5

Step-by-step explanation:

area = $\pi r^{2}$

78.5 = 3.14 $r^{2}$

r = $\sqrt{ \frac{78.5}{3.14}}$ =5

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