Angle Facts

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  • Created by: Immyrosex
  • Created on: 10-04-15 11:41

Simple Angle Facts.

There are 360 degrees in a full turn.

There are 180 degrees in half a turn.

There are 90 degrees in a quarter of a turn. 

Another name for a quarter turn is a 'Right Angle'

three different angles (http://www.bbc.co.uk/staticarchive/3b616aa318ade54c50c985f6654014baa31fe190.gif)

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Types of Angle.

Any angle less than 90 degress is called an 'Acute Angle' 

image: an angle (http://www.bbc.co.uk/staticarchive/3d6794a7b26e49a320671447560f6dd24e251894.gif)

Any angle that is between 90 and 180 degrees is called an 'Obtuse Angle'

image: an angle (http://www.bbc.co.uk/staticarchive/7a46286dc9323a9e8a225bff81321816095a3c6b.gif)

 Any angle that is between 180 and 360 degrees is called a 'Reflex Angle'

image: an angle (http://www.bbc.co.uk/staticarchive/f9681b7c20dec742d17cb35002b176d31fc30401.gif)

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Properties of 2D Shapes.

Triangles

Triangles have three sides. There are many different types of triangles:

Equilateral triangle

  • 3 equal sides

  • 3 equal angles of 60°

    An equilateral triangle (http://www.bbc.co.uk/staticarchive/290e0f4cfa9170e6fb1d58ae22b2b564fa25a710.gif)

Isosceles triangle

  • 2 equal sides

  • 2 equal angles

An Isosceles triangle (http://www.bbc.co.uk/staticarchive/dcfb78b04968c6662d8c0d5a79124b680c24ce6e.gif)

Scalene triangle

  • No equal sides

  • No equal angles

A Scalene triangle (http://www.bbc.co.uk/staticarchive/41446ca7a74ced949422a05fe77c77f7e09a5944.gif)

Right-angled triangle

  • One of its angles is a right angle (90°)

A Right-angled triangle (http://www.bbc.co.uk/staticarchive/a26004996391543bfbe04c491117b686f36c8d10.gif)

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