Question

The length of an arc of a circle is 6.28 units, and the measure of the corresponding central angle is 1.12 radians. What is the radius of the circle? Round the answer to two decimal places.

Answer 1

Hello,

$arc=\theta \ * R\\\\ R= \frac{6.28}{1.12} =5,607142857...$≈5.61

Answer 2

Using the formula :
L = R x theta
Where,
L =arc length
R = radius
Theta = angle 
So,
Substituting the given values :
 
L = R x theta
6.28  = R x 1.12 
R = 6.28 / 1.12
R = 5.60