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Goshia [24]
3 years ago
9

Can someone explain how to do this?

Mathematics
1 answer:
Sedaia [141]3 years ago
8 0
Angle one and two are congruent so they are the same. You have to make them equal to each other to get r. So 120=2r-4 which reduces to 124=2r which then reduces to 62=r
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