Question

Which of the following is not a pair of adjacent angle of a parallelogram *

1)30°, 150°
2)60°,120°
3)90°, 45°
4)75°, 105°​

Answer 1

The answer will be 3) 90°, 45° because the sum is not equal to 180°

Answer 2

Question :- Which of the following is not a pair of adjacent angles of a parallelogram*

1)30°, 150°

2)60°,120°

3)90°, 45°

4)75°, 105°

Solution :-

we know that,

• Sum of adjacent angles of a parallelogram are supplementry or add to 180° .

so, checking all options now,

• A) 30° + 150° = 180°
• B) 60° + 120° = 180°
• C) 90° + 45° = 135° ≠ 180° .
• D) 75° + 105° = 180°

therefore, we can conclude that, Option (C) 90° and 45° are not a pair of adjacent angles of a parallelogram .

Learn more :-

In ABC, AD is angle bisector,

angle BAC = 111 and AB+BD=AC find the value of angle ACB = ?

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