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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`

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In Figure, O is the centre of the circle such that /_A O C\ =130^0,\ then /_A B C= (a) 130^0 (b) 115^0 (c) 65^0 (d) 165^0

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

In Figure, if /_A O B=80^0a n d\ /_A B C=30^0, then find /_C A O

The diagonals of a parallelogram A B C D intersect at O . If /_B O C=90^0\ a n d\ /_B D C=50^0, then /_O A B= (a) 40^0 (b) 50^0 (c) 10^0 (d) 90^0

In a A B C , if /_A-/_B=33^0 and /_B-/_C=18^0, then /_B= (a) 35^0 (b) 45^0 (c) 56^0 (d) 55^0

In Figure, If /_A B C=45^0, then /_A O C= (a) 45^0 (b) 60^0 (c) 75^0 (d) 90^0

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Line segments A B\ a n d\ C D intersect at O such that A C = D Bdot If /_C A B=45^0a n d\ /_C D B=55^0, then /_B O D= (a) 100^0 (b) 80^0 (c) 90^0 (d) 135^0

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 Figure, if /_B A C=60^0\ a n d\ /_B C A=20^0,\ find /_A D C

RD SHARMA ENGLISH-CIRCLE -All Questions
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  13. The greatest chord of a circle is called its (a) radius         (b) ...

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  14. Angle formed in minor arc of a circle is

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

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  16. In Figure, O is the centre of the circle such that /A O C\ =130^0,\ ...

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  17. In Figure, if chords A B\ a n d\ C D of the circle intersect each ...

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  18. In Figure, If /A B C=45^0, then /A O C= (a) 45^0 (b) 60^0 (c) 75^0 ...

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  19. In Figure, chords A D\ a n d\ B C intersect each other at right an...

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  20. In Figure, O is the centre of the circle and /B D C=42^0dot The meas...

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