Cooper earned $214.50 at his job when he worked for 13 hours. How much money did he earn each hour?
1 answer:
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Hope you understand. tell me if u need help
They forget to say "not to scale". I'm guessing this is trig because I don't see another way to do it.
Let's consider x=chord PQ first. By the Law of Cosines
We have an isosceles triangle formed by two radii of 9 cm and x=PQ. By the Law of Cosines again,
The area of the circle is the fraction given by the angle,
Answer: 24.7 sq cm