Question

3. Two circles of radii 3cm & 4.5cm are drawn with their centres 5cm apart. They are
————— circles

Answer 1

Step-by-step explanation:

Draw a line segment AB of length 6cm.

Draw a circle C1 of radius R

1

=3cm at A and R

2

=3cm at B.

Both circle touch externally each other at point P.

Draw perpendicular taking AP as base and vertex P.

XX

′

is the transverse common tangent between two circles.

solution