Question

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Answer 1

Answer:

3)The sum of the angles of a triangle is 180 degrees. As the ratio of the angles of the triangle is 4:5:9 they can be taken to be 4x, 5x and 9x. 4x + 5x + 9x = 180

=> 18x = 180

=> x = 10

This gives the angles of the triangle as 40, 50 and 90 degrees.

Answer 2

Explanation:

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