Question

1. The angles of a triangle are (x --20°, (x - 30) and (x + 20°. Find the value of x.

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Answer 1

Answer:

Sum of angles = 180

(x-20) + (x-30) + (x+20) = 180

3x - 30 = 180

3x = 180 + 30 = 210

x = 210/3 = 70