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وارد شوید

Mathematics for IGCSE & O level - Circle Theorems (Section 1 - No. 43)

In a cyclic quadrilateral, angle A is 110 degrees. What is the measure of its opposite angle C?
70 degrees
90 degrees
110 degrees
250 degrees

توضیح

Opposite angles in a cyclic quadrilateral are supplementary (add up to 180 degrees).

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