leximae5391
07.07.2020 •
Mathematics
What is the value of y?
40°
Y + 30°
Solved
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Ответ:
y = 55
Step-by-step explanation:
The sum of the angles of a triangle are 180
40 + y+30 + y = 180
Combine like terms
70 +2y = 180
Subtract 70 from each side
2y = 180-70
2y = 110
Divide each side by 2
2y/2 = 110/2
y = 55
Ответ:
Step-by-step explanation: