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Prove that the sum of angles of a triangle is 180 . if angles of a triangle are in the ratio. 5:4:9, show that the triangle is a right triangle.

Answer»

-step EXPLANATION:Yes because, 9X+5x+4x = 180》 18X = 180So, x= 10Therefore, 9x = 90⁰So, it is right angled triangle...



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