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In the adjoining figure, seg EF is the d...

In the adjoining figure, seg EF is the diameter of the circle with centre H. Line DF is tangent at point F. If r is the radius of the circle, then prove that `DE xxGE=4r^2`.

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CHETANA PUBLICATION-CIRCLE-EXERCISE
  1. In the adjoining figure, seg EF is the diameter of the circle with cen...

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  2. Two circles of radii 5.5 cm and 3.3 cm respectively touch each other.W...

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  3. Two circles intersect each other such that each circles pass through t...

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  4. A circle touches all sides of a parallelogram.so the parallelogram mus...

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  5. length of a tangent segment drawn from a point which is at a distance ...

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  6. If two circles are touching externally,how many common tangents of the...

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  7. /ACB is inscribed in arc ACB of a circle with centre O.If /ACB=65^@,fi...

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  8. Chords AB and CD of a circle intersect inside the circle at point E. I...

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  9. In a cyclic square ABCD, twice the measure of /A is thrice the measure...

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  10. Points A,B,C are on circle, such that m(arc AB)=m(arc BC)=120^@. No po...

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  11. Seg XZ is a diameter of a circle. Point Y lies in its interor. How man...

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  12. /QPR=60^@, then /AOB=…….a)60^@ b)90^@ c)120^@ d)240^@

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  13. Angle between external end point of radius and tangent is…………

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  14. Point P is on the circle. AB is diameter of the circle, /APB is ……………....

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  15. MN is tangent at M and AM is radius.Find AM.

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  16. /ADC=80^@, then /CBE=? a)100^@ b)10^@ c)80^@ d)280^@

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  17. /XYZ=40^@,/AYZ=20^@, line AY is tangent at point Y.:.m(arc XY)=…………a)8...

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  18. AB is tangent at B. AB=12, AP=6, :.PQ=……. a) 12 b) 18 c) 6 d) 20

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  19. Line PT is a tangent at point T. Which of the following is true? a)/AB...

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  20. A circle with centre P.Line AB and line AC are tangents from point A a...

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  21. In adjoining figure,PQ=QR./P=60^@.m(arc PR)=………….

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