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 =((\theta)/(360))2 \pi r`

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

`61.26 =((270)/(360))2 (3.14) r`

`61.26 =4.71 r`

`13=r`

Thus, the radius is 13 m