Question

Draw a transverse common tangent to two circles of radii 6 cm and 2 cm whose centres are 8 cm apart.

Answer 1

Draw a line segment of $8cm$.

Draw a circle $C1$ of radius $R_1=6cm$ at $A$ and $R_2=2cm$ at $B$. Both circle touch externally each other at point $P$. Draw perpendicular taking $AP$ as base and vertex $P$.

$X{X}^{\prime }$ is the transverse common tangent.