1. Find x + y + z
А
Z
80°
x 30°
B
y
c
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Answer:
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Step-by-step explanation:
x = 30 degree, z = 80 degree, y = ?we know,
x+y+z = 180 degree
30 + y + 80 = 180 degree
110 + y = 180 degree
y = (180 - 110) degree
y = 70 degree