. If line q ll line r , line p is their transversal and if a=80° find the values of f and g .
Solution: a = 80° (given)
a= g ……….
∴ = …….. (i)
f+ g = …….. (angles in a linear pair )
∴ f+ 80°= 180° from (i)
∴ f= 180°- …….
∴ f= ……
∴The value of f and g are 100°and …….. respectively
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140°°°°°°°°°°°°°°°==°°
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