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Question

In figure given below, Find the value of 1 + 2.


A
180
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B
270
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C
190
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D
Insufficient Data
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Solution

The correct option is C 190

1 and 72 form a linear pair.
So, 1 + 72 = 180°
1 = 180°- 72
1 = 108°
Similarly, 2 and 98 form a linear pair.
So, 2 + 98 = 180°
2 = 180°- 98
2 = 82°
1+2=108°+82°=190°


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