find the value of x and y where o is the centre of the circle and Angle DOC is 70°.
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here, angle DOC =AOB=70[vertically opposite angle]
Now,
angle DOC+angle COB =180 [angle sum property]
=>70+angle COB=180
=>angle COB=110
similarly,
angle DOA +angle AOB =180
=>angle DOA=110.
so x=y=110.
Now,
angle DOC+angle COB =180 [angle sum property]
=>70+angle COB=180
=>angle COB=110
similarly,
angle DOA +angle AOB =180
=>angle DOA=110.
so x=y=110.
Samr1ddh1:
how are x and y equal?
vertically opposite angle
and if they r ..... so how 110° .. by which theorem ?
they r nt vertically opposite
and there value are also same look in the solution
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