In ΔQRS, r = 89 inches, s = 32 inches and ∠Q=116°. Find ∠R, to the nearest degree.
1 answer:
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First we need to find ∡PRQ. To do this we can use the fact that the sum of the interior angles of a triangle is 180°:
Now, we can use the fact that a strait line (like SRQ) is also 180°:
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Now, we can use the fact that a strait line (like SRQ) is also 180°: