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Learn what is a 180 degree angle, also known as a straight angle, and how to draw it using a protractor or a compass. Find out the properties, types and formulas of angles and solve problems on 180 degrees.
- The 180-degree angle is called a straight angle.
- A 180-degree angle looks like a straight line.
- We can easily draw a 180-degree angle using a protractor or a compass.
- Two 90 degrees angles add up to a straight angle.
- Yes, straight angle and 180-degree angle are the same.
- For a triangle, the sum of all the interior angles is equal to 180 degrees. Also, the sum of each interior angle and exterior angle of a triangle i...
- A 360-degree angle is called full angle or full rotation.
Learn what a 180-degree angle is, how to draw it with a protractor or a compass, and see real-life examples of this straight angle. Find worksheets, practice questions, and FAQs on 180-degree angles.
Learn how to use parallel lines, transversals, and corresponding angles to prove that the sum of the interior angles of a triangle is 180°. Watch a video, read a transcript, and see questions and tips from other learners.
- 4 min
- Sal Khan
A straight angle is 180 degrees. This is a straight angle. A straight angle changes the direction to point the opposite way. Sometimes people say "You did a complete 180 on that!" ... meaning you completely changed your mind, idea or direction.
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3 days ago · Learn what a 180 degree angle is, how to draw it, and its properties. Find out the types of angles, such as reflex, straight, adjacent, and supplementary angles, and see solved examples.