Please help!!! Quadrilateral ABCD is inscribed in this circle. What is the measure of A?

Mau asked May 3, 2023

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42 votes

Please help!!!
Quadrilateral ABCD is inscribed in this circle.
What is the measure of A?

Mau asked May 3, 2023

by Mau

2.7k points

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25 votes

Answer:

∠ A = 59°

Explanation:

ABCD is a cyclic quadrilateral.

the opposite angles in a cyclic quadrilateral sum to 180° , then

∠ A + ∠ C = 180°

∠ A + 121° = 180° ( subtract 121° from both sides )

∠ A = 59°

AmrataB answered May 9, 2023

3.2k points

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