Section Warm-Up
Think & Click: Section Warm-Up
Now, you try. Complete the Think & Click activity by looking at the problem below, thinking about it, and then clicking on the question to reveal the solution.
How many degrees make up a circle?
360°
How many degrees make up half of a circle?
180°
What is a chord?
A chord is a line segment that connects any two points on a circle.
What is a secant?
A secant is a line or line segment that passes through any two points on a circle and extends outside the circle.
What is a tangent?
A tangent is a line or line segment that touches a circle in just one place, without passing into the center of the circle.
