Q. 1014.2( 5 Votes )

# In Fig. 5.54, if l ||m, find the values of a and b.

Answer :

∠ x = 180^{0}-132^{0} = 48^{0}(Forms a linear pair)

∠a = 180^{0}-(65^{0} + 48^{0}) = 67^{0} (Interior angles of a triangle are supplementary)

∠a, ∠b and ∠y are supplementary

∠ y = 65^{0} (Corresponding angle)

∠b = 180^{0}-(67^{0} + 65^{0}) = 48^{0}

∠a = 67^{0}, ∠b = 48^{0}

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