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What are Acute, Obtuse, and Right Triangles?

Note:

Did you know that there are different kinds of triangles? Knowing how to identify these triangles is an important part of solving many problems involving these triangles. Check out this tutorial and learn about some of the different kinds of triangles!

Keywords:

  • definition
  • triangle
  • triangles
  • acute
  • acute triangle
  • acute triangles
  • obtuse
  • obtuse triangle
  • obtuse triangles
  • right
  • right triangle
  • right triangles
  • angle
  • angles
  • acute angles
  • obtuse angles
  • right angles
  • acute angle
  • obtuse angle
  • right angle
  • 180
  • 180 degrees
  • add to 180
  • triangle sum theorem

Background Tutorials

  • Planes and Angles

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        What is an Angle?

      What is an Angle?

      Angles are a fundamental building block for creating all sorts of shapes! In this tutorial, learn about how an angle is formed, how to name an angle, and how an angle is measured. Take a look!

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        What are Acute, Obtuse, Right, and Straight Angles?

      What are Acute, Obtuse, Right, and Straight Angles?

      Did you know that there are different kinds of angles? Knowing how to identify these angles is an important part of solving many problems involving angles. Check out this tutorial and learn about the different kinds of angles!

Further Exploration

  • Right Triangles and the Pythagorean Theorem

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        What are the Legs and Hypotenuse of a Right Triangle?

      What are the Legs and Hypotenuse of a Right Triangle?

      Looking for some terminology used with right triangles? Then this tutorial was made for you! In this tutorial, you'll be introduced to the names for the different parts of a right triangle. Check it out!

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        What is the Pythagorean Theorem?

      What is the Pythagorean Theorem?

      The Pythagorean theorem is a very popular theorem that shows a special relationship between the sides of a right triangle. In this tutorial, you'll get introduced to the Pythagorean theorem and see how it's used to solve for a missing length on a right triangle!