Question

What is the length of AD? Express the answer in terms of Pie.

Answer 1

3 pi

Explanation:

We already know that the sum of the angles adds up to 360.

Therefore we get 73+ 104+ 43 + x = 360, where x = 140

arc length =
`(angle)/(360) * (2\pi r)`

were the angle is 140 and r = 4. The radius was given.

Hope this helps.