In a cyclic quadrilateral ABCD, if angle A is 100°, what is the measure of…
2025
In a cyclic quadrilateral ABCD, if angle A is 100°, what is the measure of angle C?
Answer: B. 80° — Opposite angles of a cyclic quadrilateral are supplementary. Therefore angle C = 180° - 100° = 80°.
- A.
100°
- B.
80°
- C.
90°
- D.
70°
Attempted by 2 students.
Show answer & explanation
Correct answer: B
Opposite angles of a cyclic quadrilateral are supplementary. Therefore angle C = 180° - 100° = 80°.
Loading lesson…