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If A B ,\ B C\ a n d\ C D are equal ch...

If `A B ,\ B C\ a n d\ C D` are equal chords of a circle with `O` as centre and `A D` diameter, then `/_A O B=` (a) `60^0` (b) `90^0` (c) `120^0` (d) none of these

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A B\ a n d\ C D are two parallel chords of a circle whose diameter is A C . Prove that A B=C D

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A B\ a n d\ C D are diameters of a circle with centre Odot If /_O B D=50^0, find /_A O C

If A ,\ B ,\ C are three points on a circle with centre O such that /_A O B=90^0 and /_B O C=120^0, then /_A B C= (a) 60^0 (b) 75^0 (c) 90^0 (d) 135^0

In Figure, if tangents PA and P B are drawn to a circle such that /_A P B=30^0 and chord A C is drawn parallel to the tangent P B , then /_A B C= (a) 60^0 (b) 90^0 (c) 30^0 (d) None of these

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An equilateral triangle A B C is inscribed in a circle with centre Odot The measures of /_B O C is (a) 30^0 (b) 60^0 (c) 90^0 (d) 120^0

In a rhombus A B C D , if /_A C B=40^0, then /_A D B= (a) 70^0 (b) 45^0 (c) 50^0 (d) 60^0

In a quadrilateral A B C D ,\ /_A+/_C is 2 times /_B+/_Ddot If /_A=140^0\ a n d\ /_D=60^0, then /_B= (a) 60^0 (b) 80^0 (c) 120^0 (d) None of these

In a "DeltaA B C","\ "/_"C"=60"\ "&\ /_A=75. If D is a point on A C such that area of the "DeltaB A D" is sqrt(3) times the area of the "DeltaB C D", then the /_"A B D"= 60^0 (b) 30^0 (c) 90^0 (d) none of these

RD SHARMA ENGLISH-CIRCLE -All Questions
  1. One chord of a circle is known to be 10 cm. The radius of this circl...

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  2. A B C is a triangle with B as right angle, A C=5\ c m\ a n d\ A B=...

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  3. If A B ,\ B C\ a n d\ C D are equal chords of a circle with O as cen...

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  4. Let C be the mid-point of an arc A B of a circle such that m\ hat...

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  5. In a circle, the major arc is 3 times the minor arc. The correspondi...

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  6. If A\ a n d\ B are two points on a circle such that m\ ( hat A B)=26...

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  7. An equilateral triangle A B C is inscribed in a circle with centre...

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  8. In a circle with centre O ,\ A B\ a n d\ C D are two diameters perpend...

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  9. Two equal circles of radius r intersect such that each passes throu...

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  10. If A B is a chord of a circle, P\ a n d\ Q are the two points on t...

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  11. If two diameters of a circle intersect each other at right angles, t...

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  12. If A B C is an arc of a circle and /A B C=135^0, then the ratio of...

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  13. The chord of a circle is equal to its radius. The angle subtended by...

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  14. P Q R S is a cyclic quadrilateral such that P R is a diameter of the...

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  15. If A ,\ B ,\ C are three points on a circle with centre O such that ...

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  16. A B\ a n d\ C D are two parallel chords of a circle with centre O su...

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  17. In a circle of  radious 17 cm, two parallel chords are drawn on op...

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  18. The greatest chord of a circle is called its (a) radius         (b) ...

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  19. Angle formed in minor arc of a circle is

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  20. Number of circles that can be drawn through three non-collinear poin...

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