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Estimating Angle Measurements Worksheet

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Draw a line between the angles and their measurements in degrees.

two lines forming a 90 degree angle 

75° (e)

two lines forming a 45 degree angle 

90° (a)

two lines forming a 110 degree angle 

15° (f)

two lines forming a 160 degree angle  

45° (b)

two lines forming a 75 degree angle 

110° (c)

two lines forming a 15 degree angle 

160° (d)

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From a Series of Angles Worksheets    –    By HelpingWithMath.com

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