# CBSE Class 10-Mathematics: Questions and Answers Chapter –10 Circles Part 3

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**Question 12:**

A tangent PQ at a point P to a circle of radius meets a line through the centre O at a point Q, so that , then length of is

(a)

(b)

(c)

(d) None of these

**Answer:**

(b)

**Question 13:**

If tangents PA and PB from a point P to a circle with center O are inclined to each other at angle of then is equal to

(a)

(b)

(c)

(d)

**Answer:**

(a)

**Question 14:**

The length of tangent drawn to a circle with radius from a point 5 cm from the centre of the circle is

(a)

(b)

(c)

(d)

**Answer:**

(c)

**Question 15:**

A circle touches all the four sides of a quadrilateral ABCD whose sides , , , then ____

(a)

(b)

(c)

(d)

**Answer:**

(b)

**Question 16:**

If a point lies on a circle, then what will be the number of tangents drawn from that point to the circle?

(a) 1

(b) 2

(c) 3

(d) Infinite

**Answer:**

(a) 1

**Question 17:**

A quadrilateral ABCD is drawn to circumscribe a circle IF , , , then length of is

(a)

(b)

(c)

(d) None of these

**Answer:**

(c)

**Question 18:**

A tangent at point P of a circle of radius meets a line through the centre to a point so that , then length of is

(a)

(b)

(c)

(d)

**Answer:**

(d)

**Question 19:**

line intersecting a circle in two points is called

(a) Tangent

(b) Secant

(c) Diameter

(d) None of these

**Answer:**

(b) Secant