1 Answer | Add Yours
To construct a common internal tangent you need to remember what a common tangent is.
The line that is tangent to two coplanar circles is called common tangent.
There are two types of common tangent lines to two circles: common internal tangent and common external tangent.
How differs these two types of common tangents?
Draw a line joining the centers of the two circles then draw a common tangent.
If the common tangent intersects the line joining the centers of the circles, then this tangent is called common internal tangent.
We’ve answered 330,302 questions. We can answer yours, too.Ask a question