1. the value of x is 40
m ∠ DOC = 40°
m ∠ AOB = 2 x 40(x) = 80 + 10 = 90 ( right angle)
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Answers & Comments
1. the value of x is 40
m ∠ DOC = 40°
m ∠ AOB = 2 x 40(x) = 80 + 10 = 90 ( right angle)