Worksheet: Construct the external tangent lines common to two circles.

(For assistance see www.mathopenref.com/consttangentsext.html)

1. | Construct one of the two possible external tangent lines common to the two circles below
(To find the centers of the circles see Finding the center of a circle). |

2. | When constructing both tangents, how many steps can be combined? What is the smallest number of arcs and lines needed? |

(C) Copyright John Page 2007