Question

Two angles of a quadrilateral are 100° each. If the other two angles are also equal then what is the measurement of each of the other two angles?

1. 80°
2. 60°
3. 50°
4. 90°

Answer 1

Correct Answer - Option 1 : 80°

Given:

Two angles of a quadrilateral are 100° each.

Other two angles are also equal

Formula used:

Sum of angles of a quadrilateral = 360°

Calculation:

Let the other two angles be x° each

⇒ 100° + 100° + x° + x° = 360°

⇒ 2x° = 160°

⇒ x° = 80°

∴ Measurement of each of the other two angles = 80°