More Lessons for High School Regents Exam
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.
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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