Asked by tanya

in a triangle XYZ,the measure of angle Y is 40 more than the measure of angle X.the measure of angle Z is 10 less than three times the measure of angle X.find the measure of angle X
Answered by Anonymous
Y = X+40
Z = 3X-10

X+Y+Z = 180
X + X+40 + 3X-10 = 180
5X = 150
X = 30
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