Question

Been waiting for half an hour pls help me

Answer 1

13.7 cm

Explanation:

1. there are 360° in a circle and in this image, we can see 90°+90°+66.4°=260.4
2. since we know that 360°-260.4°=99.6°
3. The angle measure of arc AD is 99.6°

Now that we covered that, we can use the arc length formula in order to find the length of arc AD.

1. arc length = 2πr(Θ/360°)
2. 2π(7.9)(99.6°/360°) = 13.7329
3. rounded to the nearest tenth = 13.7