Question

If the angle of a triangle measure (x+40)° ,(2x+20)° and 3x°, find the angle of a triangle.also state which type of a triangle is this.

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Answer 1

Explanation:

x + 40 + 2x + 20 + 3x = 180

6x = 180 - 60

6x = 120

x = 20

thus

x + 40 = 60

2x + 20 = 60

3x =60

Its an equilateral triangle