Question

Find the radius if mADB=270° and length is 61.26 meters

Answer 1

Given:

In the given circle, ∠ADB = 270° and length of ADB = 61.26 m

To find the radius of the circle.

Formula

The formula to determine the radius is given by

$arc \ length =(\frac{\theta}{360})2 \pi r$

Substituting arc length = 61.26, $\theta= 270$, we get;

$61.26 =(\frac{270}{360})2 (3.14) r$

$61.26 =4.71 r$

    $13=r$

Thus, the radius is 13 m