Tangent triangle missing angles

This math skill involves calculating missing angles in a triangle formed by a radius of a circle and a tangent line. It teaches that the angle between the radius and the tangent is always 90 degrees, and the sum of angles inside the triangle must be 180 degrees.

Skill Practice

Tangent triangle missing angles

Test your understanding of tangent triangle missing angles by practicing it! Work through the below exercises to use it in practice.