Two angles , angle ABC and angle PQR intersect each other at O such that PQ||AB and QR||BC as shown in the figure: If angle PQR =50° find angle POC and angle ABC.
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Answer:
In ΔABCandΔPQR, AB = PQ, BC = QR; CB and RQ are extended to X and Y respectively. ∠ABX=∠PQY. Prove that ΔABC=ΔPQR.
In ΔABC and ΔPQR
AB=PQ
And BC=QR
CB And RQ extended to X and Y
∠ABX=∠PQY
∠ABC=180
o
−∠ABX=180
o
∠PQY
∠PQR=180
o
−∠PQY=∠ABC
We get in both triangles
AB=PQ
BC=QR
And ∠ABC=∠PQR
Then both triangle are congruent
i.e. ΔABC=ΔPQR
hope its solution help this to solve your question
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