Classifying Angles


Show Answers

------ Note: The Information above this point will not be sent to your printer --------

Label each angle as acute, right, obtuse, straight, or reflex. (the first one is done for you)

 

straight angle

straight

 

asd

acute

 

acute angle

acute

 

obtuse angle

obtuse

 

obtuse angle

obtuse

reflex angle

reflex

 

right angle

right

straight angle

straight

Why must an angle’s measurement always be 360° or less?

It is part of a full circle, which measures 360°.

 

What is the name used to classify a 90° angle?

Right angle

------ Note: The Information below this point will not be sent to your printer --------

Related Resources

The various resources listed below are aligned to the same standard, (4MD05) taken from the CCSM (Common Core Standards For Mathematics) as the Geometry Worksheet shown above.

Recognize angles as geometric shapes that are formed wherever two rays share a common endpoint, and understand concepts of angle measurement:

  • An angle is measured with reference to a circle with its center at the common endpoint of the rays, by considering the fraction of the circular arc between the points where the two rays intersect the circle. An angle that turns through 1/360 of a circle is called a "one-degree angle," and can be used to measure angles.
  • An angle that turns through n one-degree angles is said to have an angle measure of n degrees.

Example/Guidance

Lines and Angles

Worksheet

Similar to the above listing, the resources below are aligned to related standards in the Common Core For Mathematics that together support the following learning outcome:

Geometric measurement: understand concepts of angle and measure angles

 

Prevent Bullying

Click the links below for information and help on dealing with bullying.

logo for Stomp out bullying campaign logo for National Bullying Helpline logo for KidsHelpPhone.ca logo for Bullying No Way site in Australia