Common Tangents

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More Lessons for High School Regents Exam
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High School Math based on the topics required for the Regents Exam conducted by NYSED.

The following diagram shows an example of the Two-Tangent Theorem. Scroll down the page for more examples and solutions.
Two Tangent Theorem

Two-Tangent Theorem
Proof that two tangent segments to a circle from the same external point are congruent.
Solve problems using the tangent theorems

Common Internal and External Tangents
Students learn the definitions of common internal tangents and common external tangents.

Common Internal Tangent

Common External Tangent

Common External Tangents

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