Length of tangent

Q.

There are two circles each with radius 5 cm. The length of tangent AB is 26 cm. Find the length of tangent CD.

1. 16 cm

2. 15 cm

3. 21 cm

4. 24 cm

Q. What is the distance between two parallel tangents of a circle having radius $4.5cm$ ? Justify you answer. [3 Marks]

Q. Tap anything which represents the radius, length of tangent and the distance between the centre and the point

1. 5, 4, 3
2. 6, 8, 9
3. 25, 24, 7
4. 17, 15, 8
5. 10, 8, 6
6. 10, 13, 16
7. 8, 12, 15
8. 13, 12, 5

Q.

State 'T' for true and 'F' for false.
I. If one angle of a cyclic trapezium is four times the other, then the greater one measures ${144}^{\circ }$.
II. The length of the direct common tangent to two circles with radii R and r, having distance between the centres d, is $\sqrt{d^2-(R-r{)}^2}$

1. (I) F (II)F

2. (I) T (II)F

3. (I) T (II)T

4. (I) F (II)T

Q. The lengths of tangents drawn from an external point to a circle are

1. Equal
2. Unequal
3. None of these
4. Depends upon the radius of the circle