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Geometry Level 1

In the figure, O is the centre of the circle and OA = CD, and AB is parallel to CD. Find the measure of angle CPD in degrees.

70 60 45 30

Ankit Vijay by Ankit Vijay , 22, India

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2 solutions

Abhishek Abhi
Jul 6, 2014

Simply construct two lines OC and OD which also will be the radius.

Now OC, OD and CD are equal as they are radius so all angles 60

Rest all will be history !!!

2 Helpful 0 Interesting 0 Brilliant 0 Confused
Krishna Garg
Jul 10, 2014

SinceAO=CD( given)ACDO will be aparallelogram,where angle CAO will be 60 degree .With parallel ines angle PCD and angle PDC will be 60 degree,obviously <CPD is 60 degree Ans

K.K.GARG,India

0 Helpful 0 Interesting 0 Brilliant 0 Confused

How ACDO is a parellogram AB is not given parallel to CD.

Manuj Dagar - 6 years, 10 months ago

And how angle CAO is 60 degree

Manuj Dagar - 6 years, 10 months ago

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