# Everything You Need to Know About Opposite Angles

In geometry, opposite angles are two angles that are located across from each other on a straight line. These angles are also sometimes known as vertically opposite angles. In this blog post, we'll take a closer look at opposite angles, how to identify them, and some of their key properties.

### How to Identify Opposite Angles

To begin, let's take a look at how you can identify opposite angles. As we mentioned above, opposite angles are located on a straight line with one another. This means that if you were to draw a line through the midpoint of both angles, the two lines would be parallel to one another.

Another way to think about it is that opposite angles are formed when two lines intersect at a 90-degree angle. So, if you're ever unsure whether or not two angles are opposite of one another, simply check to see if the angle between the lines is 90 degrees. If it is, then you can be sure that theangles are indeed opposite of one another.

### The Key Properties of Opposite Angles

Now that we know how to identify opposite angles, let's take a look at some of their key properties. Firstly, opposite angles are always equal to one another. This means that if angle A and angle B are opposite of one another, then A = B.

You can also use this property to solve for missing angle measurements. For instance, let's say you know that angle A = 30 degrees and angle B = 60 degrees. Because we know that opposite angles are equal to one another, we can set up the equation like this: 30 degrees = 60 degrees. From there, we can solve for the missing angle measurement, which in this case would be angle C = 120 degrees.

We hope this blog post has helped you better understand opposite angles and how to identify them! Remember, if you're ever unsure whether or not two angles are opposites of one another, just check to see if the angle between the lines is 90 degrees. And finally, don't forget that opposite angles are always equal to one another!

## FAQ

### What is the rule about opposite angles?

The rule about opposite angles states that the two angles on either side of alien is equal. Additionally, the angles across from each other are supplementary, meaning that they add up to 180 degrees. This rule applies to any shape, as long as the sides are parallel.

### What is true about opposite angles?

The angles across from each other are supplementary, meaning that they add up to 180 degrees. This rule applies to any shape, as long as the sides are parallel. Additionally, the rule about opposite angles states that the two angles on either side of alien,is equal.

### How do you identify opposite angles?

To identify opposite angles, first look for two angles that are on either side of a line or angle. Then, check to see if the angles across from each other are supplementary, meaning that they add up to 180 degrees. If so, then the angles are opposite angles. This rule applies to any shape, as long as the sides are parallel.

### What do you call opposite angles?

The angles across from each other are supplementary, meaning that they add up to 180 degrees. This rule applies to any shape, as long as the sides are parallel. Additionally, the rule about opposite angles states that the two angles on either side of a line or angle are equal. These angles are called opposite angles.

### What is the definition of opposite angles?

Opposite angles are two angles that are on either side of a line or angle, and the angles across from each other are supplementary, meaning that they add up to 180 degrees. This rule applies to any shape, as long as the sides are parallel. Additionally, the rule about opposite angles states that the two angles on either side of a line or angle are equal.