In Fig XY and X'Y' are two parallel tan...

In Fig XY and X'Y' are two parallel tangents to a circle with centre O and another tangent AB with point of contact C intersecting XY and X'Y' at B , prove that `angle AOB = 90^@`

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OSWAL PUBLICATION-DIKSHA QUESTIONS -Unit -IV: Geometry (Circles) (Short Answer type questions)

If Fig , AOB is diameter of a circle with centre O and AC is a tangent...
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In figure PQ is a tangent at a point C to a circle with centre O. If ...
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From the external point P tangents PA and PB are drawn to a circle wit...
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From an external point P, two tangents PT and PS are drawn to a circle...
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The incircle of an isosceles triangle ABC, in which AB = AC, touches t...
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Prove that the tangent at any point of circle is perpendicular to the ...
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A circle is inscribed in the quadrilateral ABCD. Given BC= 38 cm . BQ=...
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Find the value of x.
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In Fig , AB is a chord of a circle , with centre O , such that AB = 16...
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Prove that the length of the tangents drawn from an external point to ...
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In Fig , are two concentric circles of radii 6 cm and 4 cm with centre...
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From a point P, two tangents PT and PS are drawn to a circle with cent...
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In Figure, a quadrilateral ABCD is drawn to circumscribe a circle . ...
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In fig , a circle isinscribed in a triangle PQR with PQ = 10 cm , QR =...
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In the given figure the sides AB, BE and CA of triangle ABC touch a c...
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In figure , a triangle ABC is drawn to circumscribe a circle of radius...
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A triangle ABC is drawn to circumscribe a circle of radius 4 cm suc...
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In Fig XY and X'Y' are two parallel tangents to a circle with centre ...
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Two tangents T P and T Q are drawn to a circle with centre O fro...
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A circle touches the side BC of DeltaABC at P and touches AB and AC pr...
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