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The measure of each angle of a triangle will be 80, 60 and 40.
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Answer:
Step-by-step explanation:
the angles are x, x - 20 and x - 40
therefore,
Angle (1+2+3) = 180
x + x -20 + x -40= 180
3x - 60 = 180
3x = 240
x = 80
hence, each angles are 80°, 60° and 40°
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