2 years ago

Been waiting for half an hour pls help me

Mathematics

1 answer:

Stella [2.4K]2 years ago

3 0

Answer:

13.7 cm

Step-by-step explanation:

there are 360° in a circle and in this image, we can see 90°+90°+66.4°=260.4
since we know that 360°-260.4°=99.6°
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.

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

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