Question

A circle has a circumference of 7850 units.
What is the radius of the circle?

Answer 1

Answer:

2pi r = 7850

r = 7850 / 2 pi

r = 7850 × 7/ 2 ×22

r = 7850 × 7 / 44

r = 1248.86

Answer 2

Answer:

$\pi \: r2 = 7850$

thus r is

$\pi \: r = \frac{7850}{2 } = 3925$

therefore

$r = 3925 \times \frac{22}{7} = 12335.714285714 \:$

Step-by-step explanation:

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