In AWXY, m_W = (10x +17), m_X = (2x – 9)", and m_Y = (3x + 7)º.
Find mZY
1 answer:
Answer:

Step-by-step explanation:
Suppose we have a triangle WXY whose internal angles are:



The sum of the measures of the angles must be 180°, thus:

Simplifying:
15x + 15 = 180
Subtracting 15:
15x = 165
Dividing by 15:
x = 11
Thus, the measure of angle Y is


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