prayingfeet7663 prayingfeet7663

29-09-2018
Mathematics

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Quadrilateral abcd is inscribed in this circle. What is the measure of ∠a ? C is 43.

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tramserran tramserran

29-09-2018

opposite angles are supplements (equal to 180°).

∠a + ∠c = 180°

∠a + 43° = 180°

∠a = 137°

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