Question

Angles which are both supplementary and vertically opposite are ______.

विकल्प

• 95°, 85°

• 90°, 90°

• 100°, 80°

• 45°, 45°

Answer 1

Angles which are both supplementary and vertically opposite are 90°, 90°.

Explanation:

Since, vertically opposite angles are equal.

∴ Let each angle be x.

⇒ x + x = 180°  ...[∵ Angles are supplementary]

⇒ 2x = 180°

⇒ x = 90°

Thus, the required angles be 90° each.