Geometry
Angle types
Name: Date:
Write whether each angle is acute, right, or obtuse.
1 acuterightobtuse
2 acuterightobtuse
3 acuterightobtuse
4 acuterightobtuse
5 acuterightobtuse
6 acuterightobtuse
7 acuterightobtuse
8 acuterightobtuse
Free · Grade 4 · Acute, right, obtuse
Types of angles worksheets
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- Answer key included
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Ready to printTypes of angles
The answer key prints on a separate page.
What's on this sheet
No degrees are printed anywhere. Writing 47 next to the angle would answer the question, and the skill being built is recognising the shape of a corner rather than reading a number. The measure lives in the answer key, where a parent marking the sheet can see it.
Why this sheet works
Angles keep a clear margin from 90 degrees, so no figure is a coin flip. An 88-degree angle and a right angle are indistinguishable on paper at this size, and a child who guesses wrong on one of those has learnt nothing except that the sheet is unfair.