In the given figure, aoc = 130°, where o is the centre. find ∠ABC

We know that

Angle subtended by a chord on mayor area is half of that subtended on center

Hence 

∠ADC= 1/2∠AOC

∠ADC= 1/2 ×130=65

ADCB is cyclic quadrilateral ⇒
Sum of opposite Angles is 180º

∠ABC+∠ADC=180º

∠ABC+65=180º

∠ABC= 115º

Was this answer helpful?

 
   

5 (1)

(4)
(2)

Choose An Option That Best Describes Your Problem

Thank you. Your Feedback will Help us Serve you better.

Leave a Comment

Your Mobile number and Email id will not be published. Required fields are marked *

*

*

DOWNLOAD

App Now

Ask
Question