Identifying Straight Angles

Identifying Straight Angles
Coming up next: Angles of 90, 180, 270 & 360 Degrees

You're on a roll. Keep up the good work!

Take Quiz Watch Next Lesson
 Replay
Your next lesson will play in 10 seconds
  • 0:05 A Straight Angle
  • 0:21 Characteristics
  • 0:48 Identifying Straight Angles
  • 1:34 Example
  • 2:42 Lesson Summary
Add to Add to Add to

Want to watch this again later?

Log in or sign up to add this lesson to a Custom Course.

Log in or Sign up

Timeline
Autoplay
Autoplay
Speed

Recommended Lessons and Courses for You

Lesson Transcript
Instructor: Yuanxin (Amy) Yang Alcocer

Amy has a master's degree in secondary education and has taught math at a public charter high school.

After viewing this lesson, you should know what a straight angle looks like. You should also know what a straight angle does and how you can identify one.

A Straight Angle

In this lesson, we are going to talk about a special type of angle called the straight angle. A straight angle changes the direction you are pointing in. If you have an arrow pointing in one direction, you will end up pointing in the opposite direction if you follow a straight angle. This is what a straight angle looks like.

straight angle

Characteristics

As you can see, a straight angle looks an awful lot like a straight line. This is because a straight angle actually produces a straight line. This type of angle measures 180 degrees. 180 degrees is a straight line, and it turns you around. This is why you might hear someone say that they just did a complete 180 when they mean that they have changed their direction or mind so that they are going in the opposite direction or thought.

Identifying Straight Angles

When you come across math problems that involve straight angles, you may not be given a straight angle right away. You may have to search for one. Your straight angles may come in the form of two angles side by side. For example, you might have two 90 degree angles, or right angles, next to each other. When you have two right angles next to each other, you get 90 + 90 = 180 degrees, which gives you a straight angle. You can also see that the outermost arms of the two right angles combine to produce a straight line.

straight angle

Or you can have two or more angles that add up to 180 all next to each other. Whatever the case, as long as your angle measures 180 degrees, you will have a straight angle. Looking at it, it should look like a straight line.

Example

Let's take a look at a possible problem.

To unlock this lesson you must be a Study.com Member.
Create your account

Register to view this lesson

Are you a student or a teacher?

Unlock Your Education

See for yourself why 30 million people use Study.com

Become a Study.com member and start learning now.
Become a Member  Back
What teachers are saying about Study.com
Try it risk-free for 30 days

Earning College Credit

Did you know… We have over 200 college courses that prepare you to earn credit by exam that is accepted by over 1,500 colleges and universities. You can test out of the first two years of college and save thousands off your degree. Anyone can earn credit-by-exam regardless of age or education level.

To learn more, visit our Earning Credit Page

Transferring credit to the school of your choice

Not sure what college you want to attend yet? Study.com has thousands of articles about every imaginable degree, area of study and career path that can help you find the school that's right for you.

Create an account to start this course today
Try it risk-free for 30 days!
Create An Account
Support