Question

ABCD is a cyclic quadrilateral such that

∠A = 90°, ∠B = 70°, find ∠C and∠D​

Answer 1

Step-by-step explanation:

IN A CYCLIC QUADRILATERAL THE SUM OF THE OPPOSITE ANGLES WILL BE 180°

THEREFORE

∠A+∠C=180°

∠B+∠D=180°

so ∠C=180°-∠A

∠C=180°-90°

∠C=90°

so ∠D=180°-∠B

∠D=180°-70°

∠D=110°