θo + ϕo = 902
ϕo = 902 - 2θo
θo = ϕo
ϕo = 2θo
θo + 2ϕo
Correct answer is E
180 - ϕo = θo + ϕo (Sum of opposite interior angle equal to its exterior angle)
180 = 2ϕ + θo
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