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Byju's Answer
Standard VI
Mathematics
Exterior Allied Angles
Using the fig...
Question
Using the figure given below, find the value of x.
A
80
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B
50
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C
120
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D
60
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Solution
The correct option is
B
50
x and x+80 are forming Exterior allied angles and since lines are parallel thus they will be supplimentary.
Therefore,
x+(x+80)=180
2x+80=180
2x=180-80
2x=100
∴
x = 50
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