Draw two externally touching circles and internally touching circles with radii 4 cm and 2 . 8 cm ,

Find the distance between two internally touching circles whose radii are 10 cm and 2 cm.

Draw circle with diameter 8cm.

In the figure ,PA and PB are tangents to the circle drawn from an external point P. also CD is a tangent to the circle at Q. if PA = 8 cm and CQ = 3cm , then PC is equal to …………..

In the adjoining figure circles with centres A and C touch internally at point T . Line AB is tangent to the smaller circle at point P . Point B lies on the bigger circle. Radii are 16 cm and 6 cm . Find AP.

Find the locus of the center of the circle touching the circle x^2+y^2-4y=4 internally and tangents on which from (1, 2) are making of 60^0 with each other.

Two circles having radii 3 . 5 cm and 4 . 8 cm touch each other internally . Find the distance between their centres . Given : (i) Two circles with centres A and B touch each other internally at point P . (ii) Radius of circle with centre A is 4 . 8 cm . (iii) Radius of circle with center B is 3 . 5 cm . To Find : AB

A circle having centre as O' and radius r' touches the incircle of Delta ABC externally at. F, where F is on BC and also touches its circumcircle internally at G. It O is the circumcentre of Delta ABC and I is its incentre, then