If angle between two radii of a circle is 130°, the angle between the tangents at the ends of the radii is
In the given figure, AB and AC are tangents to the circle with centre O such that ∠BAC = 40°, then ∠BOC is equal to
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In Fig. 8.5, PQ is a chord of a circle and PT is the tangent at P such that ∠QPT = 60°. Then ∠PRQ is equal to
In the given figure, point P is 26 cm away from the centre O of a circle and the length PT of the tangent drawn from P to the circle is 24 cm. Then the radius of the circle is
In Fig. 8.6, if PA and PB are tangents to the circle with centre O such that ∠APB = 50°, then ∠PAB is equal to
A line through point of contact and passing through centre of circle is known as
The length of the taragent drawn from a point 8 cm away from the centre of a circle of radius 6 cm is
C (O, r_{1}) and C (O, r_{2}) are two concentric circles with r_{1} > r_{2}. AB is a chord of C (O, r_{1}) touching C (O, r_{2}) at C then
Two parallel lines touch the circle at points A and B respectively, If area of the circle is 25πcm^{2}, then AB is equal to
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116 videos420 docs77 tests
