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

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

Note:

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!

Keywords:

definition

angle

angles

acute

acute angle

acute angles

obtuse

obtuse angle

obtuse angles

right

right angle

right angles

straight

straight angle

straight angles

degree

degrees

90 degrees

180 degrees

less than 90

more than 90

less than 90 degrees

more than 90 degrees

greater than 90

greater than 90 degrees

measure

angle measure

measure angles

angle measures

Further Exploration

select tools, including real objects, manipulatives, paper and pencil, and technology as appropriate, and techniques, including mental math, estimation, and number sense as appropriate, to solve problems

Knowing about supplementary angles can be very useful in solving for missing angle measurements. This tutorial introduces you to supplementary angles and shows you how to use them to solve for a missing angle measurement. Take a look!

communicate mathematical ideas, reasoning, and their implications using multiple representations, including symbols, diagrams, graphs, and language as appropriate

Do complementary angles always have something nice to say? Maybe. One thing complementary angles always do is add up to 90 degrees. In this tutorial, learn about complementary angles and see how to use this knowledge to solve a problem involving these special types of angles!