Question

12. Find the radius of a circle with a circumference of 457 centimeters.

Answer 1

Step-by-step explanation:

$Circumference=d\pi\\Circumference=2r\pi$

Since we need to find the radius, then we will rearrange the second formula.

$Radius=\frac{C}{2\pi }$

$Radius=\frac{457}{2\pi }$

$Radius=\frac{457}{6.28}$

$Radius= 72.8 (rounded)$

So, the radius of a circle that has a circumference of 457 is about 72.8 cm