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For ΔABC, the measure in degrees of angles A, B, and C are 60, 55, and x + 20 respectively. What is the value of x?

For ΔABC, the measure in degrees of angles A, B, and C are 60, 55, and x + 20 respectively. What is the value of x?
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5 votes
For ΔABC, the measure in degrees of angles A, B, and C are 60, 55, and x + 20 respectively. What is the value of x?

User Cintia
by
8.0k points

1 Answer

5 votes
60+55+x+20 = 180
x + 135 = 180
x = 180 - 135
x = 45
User Anton Kiselev
by
8.6k points
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