mcq of ch area related to circle 12 class 10 math
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Answers
MCQs of chapter 10
1. A circle has a number of tangents equal to
(a)0
(b)1
(c)2
(d)Infinite
2. A tangent intersects the circle at:(a)One point
(b)Two distinct point
(c)At the circle
(d)None of the above
3. A circle can have _____parallel tangents at a single time.
(a)One
(b)Two
(c)Three
(d)Four
4. If the angle between two radii of a circle is 110º, then the angle between the tangents at the ends of the radii is:
(a)90º
(a)90º(b)50º
(a)90º(b)50º(c)70º
(a)90º(b)50º(c)70º(c)40º
5. The length of the tangent from an external point A on a circle with centre O is
(a)always greater than OA
(b)equal to OA
(c)always less than OA
(d)Cannot be estimated
6. AB is a chord of the circle and AOC is its diameter such that angle ACB = 50°. If AT is the tangent to the circle at the point A, then BAT is equal to (a)65°
(b)60°
(c)50°
(d)40°
7. The length of a tangent from a point A at a distance 5 cm from the centre of the circle is 4 cm. The radius of the circle is:
(a)3cm
(b)5cm
(c)7cm
(d)10cm