jsmn259 jsmn259

28-07-2017
Mathematics

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Two angles of a triangle have the same measure and the third one is 21 degrees greater than the measure of each of the other two. find the measure of the largest angle in the triangle.

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Banabanana Banabanana

28-07-2017

x + x + x+ 21 = 180
3x = 180 - 21
3x = 159
x = 159/3
x = 53° ← the measure of each of the smallest angles

53 + 21 = 74° ← the measure of the largest angle

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