Question

In the given figure AB//CD . If angle AOC=30 degree and angle AOB =100 degree. Then find angle OCD

Answer 1

Answer:

OCD=130°

Step-by-step explanation:

Extend line from C to a point E

such that point E lies on line AO

As AB || CD

then AB || ED

Angle OED = Angle OAB [corresponding angles]

=>Angle OED=100°

NOW In ∆ OEC,

by using exterior angle property of ∆

Angle OCD = Sum of angles(AOC + OED)

OCD =30° + 100°

OCD = 130°

SIMPLE

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Answer 2

This is your ANSWER

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