Question

Q No: 1 The length of a tangent from a point A at the distance of 5
cm from the centre of circle is 4 cm. Find the radius of circle.

Answer 1

Step-by-step explanation:

Hence, radius of the circle is 3cm, if the length of a tangent from a point is 4cm and distance of that point from the centre is 5cm. So, 3cm is the correct answer.

Answer 2

Answer:

Step-by-step explanation:

hyp^2=s^2+s^2

   5^2=4^2+s^2

    s^2=25-16

    s^2=9

       s=$\sqrt{9$

∴       s=3