mbleauhilliard mbleauhilliard

30-05-2018
Mathematics

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Quadrilateral ABCD is inscribed in this circle. What is the measure of ∠A ?

A quadrilateral inscribed in a circle. The vertices of the quadrilateral lie on the edge of the circle and are labeled A, B, C, D. The interior angle C is labeled as 74 degrees.

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sqdancefan sqdancefan

06-06-2018

Angles A and C are supplementary when the quadrilateral is inscribed in a circle.
∠A = 180° - ∠C
∠A = 180° - 74° = 106°

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