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area of triangle=1/2(p×b)=1/2(17×17)=144.5cm²

area of rectangle=l×b=(10+17+7)×17=578cm²

area of triangle=1/2(p×b)=1/2(17×17)=144.5cm²

area of rectangle=l×b=(10+17+7)×17=578cm² is the correct answer

irrational, cannot

answer: (c) m∠qpo + (2x + 16)° = 180°

step-by-step explanation:

the opposite angles of a quadrilateral are supplementary.

so, ∠o + ∠q = 180°   and   ∠p + ∠r = 180°

since ∠r = 2x + 16°, we can use substitution as follows:

∠p + ∠r = 180°

∠p + (2x + 16)° = 180°