Solve for the value of x
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Answer:
40°
Step-by-step explanation:
A straight angle measures 180°.
100 and 2x is supplementary which measures the sum to 180°.
100 + 2x = 180°
2x = 180 - 100
2x = 80
x = 40°
Step-by-step explanation:
180 degrees = strait line
Given: 100 degrees
2x= 80
x= 40 degrees
- 180 degrees - 100 degrees = 80
2x = 80 = 40
2 = 2