# Angle basics and measurement

8 videos

3 skills

This tutorial will define what an angle is and help us think about how to measure them. If you're new to angles, this is a great place to start.

### Angle basics

VIDEO
6:49 minutes

The naming of an angle is related to the line segments that create it. We'll also learn about the angle's vertex. Come on. Let's do this.

### Measuring angles in degrees

VIDEO
8:22 minutes

Let's come up with an exact way to measure an angle using a protractor. We'll also learn about acute angles. Not to be confused with augly angles :)

### Measuring angles using a protractor

VIDEO
3:25 minutes

Let's use our virtual protractor to measure some angles together, shall we?

### More angle measurements using a protractor

VIDEO
4:05 minutes

We're practicing measuring angles using the virtual protractor. Do this a few times with us and you'll use a real protractor like a pro!

### Acute right and obtuse angles

VIDEO
5:32 minutes

We briefly discussed the types of angles in the last tutorial but we'll delve a little deeper into acute, obtuse, and right angles here.

### Angle types

PRACTICE PROBLEMS

Determine if an angle is acute, right, or obtuse. A protractor is provided.

### Vertical, adjacent and linearly paired angles

VIDEO
4:43 minutes

### Angle measurement and circle arcs

VIDEO
7:37 minutes

Did you know that the measurement of an angle is realted to the arc of a circle? Yes, indeed! Watch.

### Angles and circumference

VIDEO
1:40 minutes

We're slowly starting to put things together in this example exercise: angle, circle, circumference, and fractions. Woohoo!