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Handout
Government of Alberta

Learn alberta.ca: Mathematics Glossary: Acute Angle

For Students 3rd - 8th Standards
Get a visual and animated definition of what an acute angle is, as well as examples of acute angles in the real world.
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Activity
Math Is Fun

Math Is Fun: Acute Angle

For Students 3rd - 8th Standards
This very basic website gives a clear, simple explanation of what an acute angle is.