Similar Triangles in Circles and Right Triangles - Concept

Concept Concept (1)

Two triangles in a circle are similar if two pairs of angles have the same intercepted arc. Sharing an intercepted arc means the inscribed angles are congruent. Since these angles are congruent, the triangles are similar by the AA shortcut. If an altitude is drawn from the right angle in a right triangle, three similar triangles are formed, also because of the AA shortcut.

Sample Sample Problems (2)

Need help with "Similar Triangles in Circles and Right Triangles" problems? Watch expert teachers solve similar problems to develop your skills.

Similar Triangles in Circles and Right Triangles - Problem 1
Problem 1
How to find missing side lengths of triangles in a circle.
Similar Triangles in Circles and Right Triangles - Problem 2
Problem 2
How to find missing side lengths in a right triangle with an altitude drawn from the right angle.