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June 10th, 2017, 12:45 PM   #1
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Desperate to solve this

Radius is 10 cm, <APB = 60° and I have to find PA, PB and AB. I've tried a lot of stuff but always ended up in a dead end. I know that the answer is (300√3 - 100π)/3. I somehow always ended up with answer - 100π, I'm probably missing a simple thing, but I've been trying to solve this for 2-3 hrs by now.

Last edited by skipjack; June 10th, 2017 at 05:39 PM.
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June 10th, 2017, 05:31 PM   #2
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Is there a diagram that goes with this?
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June 10th, 2017, 05:54 PM   #3
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Originally Posted by greg1313 View Post
Is there a diagram that goes with this?
yes ... this one is a duplicate of the linked post

Need Help solving this exercise
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June 10th, 2017, 06:31 PM   #4
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AB = 10√3.
Area of quadrilateral OAPB = 100√3.
Area of sector OAB = 100$\pi$/3.
Their difference is 100√3 - 100$\pi$/3.
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