HARD
9th CBSE
IMPORTANT
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The given figure, shows two congruent circles with centres P and Q. R is the mid- point of PQ and ABRCD is a straight line. Prove that chord AB=chord CD.
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Important Questions on Circles

MEDIUM
9th CBSE
IMPORTANT
In figure, O is the centre AE is the diameter of the semicircle ABCD. If AB=BC and AEC=50o, then find CBE.
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MEDIUM
9th CBSE
IMPORTANT
In figure, O is the centre AE is the diameter of the semicircle ABCD. If AB=BC and AEC=50o, then find CDE.
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MEDIUM
9th CBSE
IMPORTANT
In figure, O is the centre AE is the diameter of the semicircle ABCD. If AB=BC and AEC=50o, then find AOB.
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HARD
9th CBSE
IMPORTANT
In figure, O is the centre AE is the diameter of the semicircle ABCD. If AB=BC and AEC=50o, then prove that BOCE.
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HARD
9th CBSE
IMPORTANT
If a line is drawn parallel to the base of an isosceles to intersect its equal sides, prove that the quadrilateral so formed is cyclic.
MEDIUM
9th CBSE
IMPORTANT
In the given figure, O is the centre of the circle and ABP=42o. Calculate the measure of PQB.
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MEDIUM
9th CBSE
IMPORTANT
In the given figure, O is the centre of the circle and ABP=42o. Calculate the measure of QPB+PBQ.
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HARD
9th CBSE
IMPORTANT
If O is the circumcentre of a ABC and ODBC, then prove that BOD=BAC.