MEDIUM
10th CBSE
IMPORTANT
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Prove that the centre of a circle touching two intersecting lines lies on the angle bisector of the lines.

Important Questions on Circles

EASY
10th CBSE
IMPORTANT

The common point of a _____ and the circle is called the point of tangency.

EASY
10th CBSE
IMPORTANT

A tangent to a circle intersects it in _____ point(s). ( Write answer in words)

EASY
10th CBSE
IMPORTANT

A line intersecting a circle in two points is called a _____.

MEDIUM
10th CBSE
IMPORTANT

In figure, CP and CQ are tangents to a circle with centre O. ARB is another tangent touching the circle at R. If CP=11 cm and BC=7 cm, then find the length of BR.
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MEDIUM
10th CBSE
IMPORTANT

In, figure, CP and CQ are tangents from an external point C to a circle with centre OAB is another tangent which touches the circle at R. If CP=11 cm and BR=4 cm, if the length of BC=k cm, find k.

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EASY
10th CBSE
IMPORTANT
If PT is tangent drawn from a point P to a circle touching it at T and O is the center of the circle, then OPT+POT=
EASY
10th CBSE
IMPORTANT
If radii of two concentric circles are 4 cm and 5 cm, then the length of each chord of one circle which is tangent to the other circle is
HARD
10th CBSE
IMPORTANT

In figure, if AOB=125°, then DOC is equal to

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