Question 985043: Three circles of radii 4, 5 and 6 are mutually tangent to each other. Find the angles of the triangle made when the radii are connected.
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! Three circles of radii 4, 5 and 6 are mutually tangent to each other. Find the angles of the triangle made when the radii are connected.
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It's a triangle with sides of 9, 10 & 11
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a = 9, b = 10, c = 11
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Use the Cosine Law to find an angle.
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Then use the Cosine Law or the Law of Sines to find a 2nd angle.
etc
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