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In the figures AB is a diameter and Ac i...

In the figures AB is a diameter and Ac is chord of the circle such that `angleBAC=30^(@)` . If DC is a tangent , then `DeltaBCD` is ……

A

isosceles

B

equilateral

C

right angled

D

acute angled

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BEYOND PUBLICATION-TANGENTS AND SECANTS TO CIRCLE-EXERCISE
  1. Choose the correct answer and give justification for each . The ang...

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  2. Two circles intersect at A, B, PS, PT are two tangents drawn from P wh...

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  3. In the figures AB is a diameter and Ac is chord of the circle such tha...

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  4. To draw a pair of tangents to a circle which are inclined to each othe...

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  5. If the radii of two concentric circles are 5 cm and 13 cm then the len...

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  6. If tangents PA and PB from a point P to a circle with centre O are inc...

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  7. In a right triangle ABC, right angled at B , BC = 15 cm and AB = 8 cm ...

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  8. Three circles are drawn with the vertices of a traingle as centres suc...

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  9. A circle may have ........ parallel tangents utmost.

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  10. A tangent to a circle intersects it in ………. Point (s) .

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  11. A line segment joining any point on a circle is called its ……

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  12. A line which intersects the given circle at two distinct points is cal...

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  13. The common point to a tangent and a circle is called …..

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  14. Angle between the tangent and radius drawn through the point of contac...

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  15. The circumference of a circle is 100 cm . The side of a square inscrib...

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  16. The area of a square inscribed in a circle of radius 8 cm is ………cm^(2)...

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  17. The area of a circle that can be inscrinbed in a square of side 6 cm i...

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  18. The perimeter of a quadrant of a circle of radius (7)/(2) cm is ………cm

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  19. The number of tangents at one point of a circle is …..

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  20. Number of tangents to a circle which are parallel to a secant are ……

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