Question

If two circles are touching each other externally and the distance between their Centre is 10 cm then find the radius of that circle.​

Answer 1

Answer:

The radius is 5cm

Step-by-step explanation

Let A be the centre of the first circle and B be the centre of second circle and let C be their point of intersection.

Let the radius of the circle be 'r'

The distance between their centre is 10 cm (given)

r + r = 10

2r = 10

r = 10/2

r = 5cm

Hence radius of circle is 5cm.