Maths Dictionary · JSS 1, JSS 2
Angle
Simple meaning
The amount of turn between two lines that meet at a point. It is measured in degrees (°).
Example
A full turn is 360°; a straight line is 180°.
See it
From the Angles and Their Types lesson. Try moving things around.
60° + 48° + 72° = 180°
This is an acute-angled, scalene triangle. Drag any corner!
Put the three angles together and they make a straight line: 180°.
Your task: make a right-angled triangle
Drag a corner until one angle shows 90°. Tip: line two sides up with the grid lines.