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I don't know how to do #86-#88. Any help?

I don't know how to do #86-#88. Any help?-example-1
User Jms Bnd
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1 Answer

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86 and 87 utilize the Pythagorean theorem. Where those tangent lines meet the circle forms a right angle. So you have a side length of 6 and a hypotenuse of 22. So the missing side length is 21.16. For 87, its the same thing, but you have the 2 legs but are missing the hypotenuse.
User Lxop
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