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  • Simple Right, Acute or Obtuse Angles Basic Geometry Worksheets
  • Rotated Simple Right, Acute or Obtuse Angles Basic Geometry Worksheets
  • Right, Acute or Obtuse Angles Basic Geometry Worksheets
  • Rotated Right, Acute or Obtuse Angles Basic Geometry Worksheets
  • Angles Near Perpendicular Basic Geometry Worksheets
  • Rotated Angles Near Perpendicular Basic Geometry Worksheets

Basic Geometry:
Angles, Right, Obtuse, Acute

Label angles as right, obtuse or acute. Optionally estimate or use a protractor to measure the actual angles.

Simple Right, Acute or Obtuse Angles

Rotated Simple Right, Acute or Obtuse Angles

Right, Acute or Obtuse Angles

Rotated Right, Acute or Obtuse Angles

Angles Near Perpendicular

Rotated Angles Near Perpendicular

Identifying Right, Obtuse and Acute Angles

These worksheets require students to look at an angle and identify whether it is right, acute or obtuse. The worksheets start out with the base leg of the angle always laying horizontal, which is the easiest way to visualize whether the angle is acute or obtuse. Earlier worksheets also avoid angles that aren't quite right angles (unless the angle really IS a right angle) to make the acute/obtuse determination more obvious. Subsequent worksheets have the base angle rotated slightly which requires more spatial thinking, and the final set of worksheets has angles that are near right angles and may require a protractor to determine if their are acute or obtuse.

Measuring Angles Worksheets

Each angles worksheet in this section also provide great practice for measuring angles with a protractor. The actual angle is provided on the answer key, so in addition to identifying whether an angle is obtuse or acute, you can suggest that students mesaure the angle with a protractor and supply the measurement as part of their work.

Worksheet History

Angles Near Perpendicular Basic Geometry WorksheetRotated Right, Acute or Obtuse Angles WorksheetRotated Angles Near Perpendicular Basic Geometry WorksheetRight, Acute or Obtuse Angles WorksheetAngles Near Perpendicular WorksheetSimple Right, Acute or Obtuse Angles WorksheetSimple Right, Acute or Obtuse Angles www.dadsworksheets.com/worksheets/basic-geometry.html WorksheetRotated Right, Acute or Obtuse Angles Basic Geometry WorksheetRight, Acute or Obtuse Angles www.dadsworksheets.com/worksheets/basic-geometry.html WorksheetRotated Right, Acute or Obtuse Angles www.dadsworksheets.com/worksheets/basic-geometry.html WorksheetSimple Right, Acute or Obtuse Angles Basic Geometry WorksheetAngles Near Perpendicular www.dadsworksheets.com/worksheets/basic-geometry.html WorksheetRotated Simple Right, Acute or Obtuse Angles Basic Geometry WorksheetAngles Near Perpendicular WorksheetRotated Right, Acute or Obtuse Angles WorksheetSimple Right, Acute or Obtuse Angles WorksheetRotated Angles Near Perpendicular WorksheetRotated Simple Right, Acute or Obtuse Angles WorksheetRotated Simple Right, Acute or Obtuse Angles www.dadsworksheets.com/worksheets/basic-geometry.html WorksheetRotated Simple Right, Acute or Obtuse Angles WorksheetRotated Angles Near Perpendicular www.dadsworksheets.com/worksheets/basic-geometry.html WorksheetRight, Acute or Obtuse Angles WorksheetRotated Angles Near Perpendicular WorksheetRight, Acute or Obtuse Angles Basic Geometry Worksheet
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