Question

The two adjacent angles of a parallelogram are in the ratio 3 : 7. The largest angle of the parallelogram is ______.

विकल्प

• 126°

• 140°

• 120°

• 98°

Answer 1

The two adjacent angles of a parallelogram are in the ratio 3 : 7. The largest angle of the parallelogram is 126°.

Explanation:

Let the two adjacent angles be 3x and 7x.

Adjacent angles in a parallelogram are supplementary.

So, 3x + 7x = 180°

⇒ 10x = 180°

⇒ x = 18°

The largest angle = 7x

= 7 × 18°

= 126°