Question

find the value of a,b,cand if l parrelel to
m​

Answer 1

Answer:

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Answer 2

Answer:

In figure (i)

∠a=180°-(120°+40°)

=180°-160°=20°

∠c=120°(alternate interior angles are equal)

∠b=40°(alternate interior angles are equal)

Therefore, ∠a=20°,∠b=40°,∠c=120°

In figure (ii)

∠b=180°-(45°+55°)

=180°-100°=80°

∠a=45°(alternate interior angles are equal)

∠c=55°(alternate interior angles are equal)

Therefore, ∠a=45°,b=80°,∠c=55°