# Inscribed Angle

- Author:
- Mr.Le, JDekofsky1

## What is an inscribed angle?

## Definition:

**Inscribed Angle**: an angle made from points sitting on the circle's circumference. From the picture above , is an inscribed created by 3 points: A, B and C. A is the apex point. B and C are end points.

## Move the vertex point (A) around in the circle below. What do you notice?

## Question 1

When the end points (B,C) do not change, the inscribed angle remain ___________ despite the change in the vertex point(A).

## Move point C around. What do you notice?

## Questions 2

is ______

**Inscribed Angle Theorem**: the inscribed angle is always half of the central angle.