12) The three angles of a triangle are in ratio 2:3:5 find the measure of each angle with explanation
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2x + 3x + 5x = 180
10x = 180
x = 18
2x = 36, 3x = 54, 5x = 90
They add up to 180 (definition of sum of angles of a triangle.)
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Answer:
36° , 54° and 90°
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