In given figure, if OP||RS, ∠OPQ = 110° and ∠QRS = 130°, then find ∠PQR.

Question

TextAlternate Angles Theorem for Parallel Lines

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If AB||CD, find x.

In figure, ∠ABC = 65°, ∠BCE = 30°, ∠DCE = 35° and ∠CFE = 145°. Prove that AB || EF.

Co-interior Angles Theorem for Parallel Lines

In the given figure, AB||CD, ∠ABO = 40°, ∠CDO = 35°. Find the value of the reflex ∠BOD and hence the value of x.

In the figure given below, AB||CD. Find the value of x.

In Fig. 6.24, if AB || CD, EF ⊥ CD and ∠ GED = 126°, find ∠ AGE, ∠ GEF and ∠ FGE.

In Fig. 6.26, if AB || CD, ∠ APQ = 50° and ∠ PRD = 127°, find x and y.