30-05-2018
Mathematics

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In this circle, what is m∠A ?

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In this circle what is mA Enter your answer in the box class=

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choixongdong choixongdong

30-05-2018

3d - 6 + 96 = 180
3d + 90 = 180
3d = 90
d = 30
So
<A = 4d - 20
<A = 4(30) - 20
<A = 120 - 20
<A = 100

Answer
<A = 100°

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