Angle Between Radius and Tangent is a Right Angle

This example demonstrates that the angle between a radius and a tangent at any point on a circle is always a right angle. Key mathematical concepts include the properties of circles and trigonometry. The construction involves using the Circle command to create a circle, the Segment command to create a radius, the OrthogonalLine command to create a tangent, and the Point and Angle commands to determine the angle. Suitable for students at the middle school level and above to learn about circle properties and trigonometry.