Question

A circle has a circumference of 7,850 what is the radius of the circle

Answer 1

Circumference of the circle =7850

Circumference =2pie t

Pie =22/7

Therefore,

7850=2×22/7×r

(7850×7)/(2×22)=r

1248.87=r (approximately )

Hope it helps☺

Answer 2

Given:

Circumference of a circle = 7,850 units.

To Find:

Radius of the given circle.

Solution:

Since, we know that the circumference of a given by the formula:

Circumference = $2 \pi r$

So, we'll put the value of circumference that is given to us:

$7850 = 2 \pi r$

Now, we know that the value of the constant $\pi = \frac{22}{7}$, lets put that value as well in the equation, we get:

$7850 = 2 \times \frac{22}{7} \times r$

Now, solving for the value of $r$, we get:

$r = 7850 \times \frac{1}{2} \times \frac{7}{22}\\ \\\Rightarrow r = 1248.86$

So,  we get the value of r = 1248.86.