Question

In a triangleABC, A=5x, B=7x and C=480 then find angles of triangle​

Answer 1

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GIVEN: C = 480°, A = 5x , B = 7x

To prove : A,B

Proof : 5x + 7x = 480°

x = 480/12

x = 40

Now, A = 5x = 5×40 = 200

B = 7x = 7×40 = 280

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