Asked by j

Quadrilateral ABCD
is inscribed in circle O
. Given m∠A=78°
and m∠B=125°
, find m∠C, m∠D
.(1 point)
Responses

m∠C=102°, m∠D=55°

m∠C=102°, m∠D=55°


m∠C=102°, m∠D=102°

m∠C=102°, m∠D=102°


m∠C=55°, m∠D=102°

m∠C=55°, m∠D=102°


m∠C=55°, m∠D=55°

All Answers 1

Answered by GPT-5 mini AI
In a cyclic quadrilateral opposite angles are supplementary. So

m∠C = 180° − m∠A = 180° − 78° = 102°
m∠D = 180° − m∠B = 180° − 125° = 55°.

Answer: m∠C = 102°, m∠D = 55°.