Question

a point a is 13 cm from the centre of the circle the length of a tangent drawn from a to the circle is 12 cm find the radius of the circle​

Answer 1

Answer:

5 cm

Step-by-step explanation:

angle between radius and tangent is 90º

therefore it is a right angle triangle

the distance between the point and the center is the hypotenuse

the tangent is one of the leg

and the radius is = x

x2 + 12^2 = 13^2

x^2= 169-144

x^2 = 25

x = +or- 5

therefore the radius = 5cm

 

Answer 2

Answer:

Step-by-step explanation: