Angles

Measure and draw angles with a virtual protractor, learn the types of angles and angle pairs, and calculate with degrees and minutes.

Open the app

Free, runs in the browser, no sign-in or installation.

Subject
Mathematics
Area
Geometry
Level
Primary school
A protractor placed on a 75° angle ABC, with the scale to read highlighted in blue

What you can do

  • Place a half-circle or full-circle protractor on the angle, move and turn it, and the app shows which scale to read.
  • Practise measuring angles and drawing an angle of a given size with checked answers, and sort types of angles in a game of 10.
  • Explore adjacent, complementary and vertically opposite angles, linear pairs and angles at a transversal of parallel lines, then work out a missing angle.
  • Convert between degrees and minutes, add and subtract angles step by step, and practise with questions.
  • Print a worksheet for each topic or a protractor to cut out, and save the drawing as a PNG.

Pictures in the Gallery13

Ready-made pictures made in this app, to download as PNG.

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