Question

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

Answer 1

∠ 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°