Math, asked by kamdarsejal77, 10 months ago

9. In the given figure, determine /_ ABC

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Answers

Answered by kumudhakshid

1

Answer:it's 80°

Step-by-step explanation:

We know that sum of opposite angles in a quadrilateral is 180

Thus 180-100=80

Answered by pournimadaphal

1

angle ABC =130°

angle AOC =arc ABC

but

arc ABC+arc ADC=360°

from it arc ADC=260°

1/2 arc ADC= angle ABC

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