Circle Theorem

The tangent to a circle is perpendicular to the radius at the point of contact.

Circle Theorem

The angle at the circumference is double the angle at the centre.

Inscribed Angle

• An inscribed angle in a circle has a vertex on the circle and is formed by two chords.

• The measure of an inscribed angle is half the measure of its corresponding arc of the circle.

Circle Theorem

Two tangents from a point to a circle are equal.

Solve for x.

3x - 10 = 2x +5

x - 10 = 5

x = 15

End of Lesson #1

When you have finished this lesson, take a screenshot of your results and upload it to the assignment page on Canvas. You have multiple attempts so be sure to go back and review the questions as many times as you need to get the grade you want. ​

Geo B Module 4 Lesson #1