ABCD is a cyclic quadrilateral such that
ZA = 90°, ZB = 70°, find angle c and angle d
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Step-by-step explanation:
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°
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