Right Angle
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Contents
Key Stage 2
Meaning
A right angle is shown in the following diagram.
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| A diagram showing a right angle between two lines. |
Key Stage 3
Meaning
A right angle is an angle of exactly 90° between two lines.
About Right Angles
- right angles are labelled between two lines that cross over at 90° to each other.
- Two lines at right angles may be called perpendicular.
- A line at right angles to a surface is called a normal line.
- The angles inside a square or rectangle are right angles.
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| A diagram showing a right angle between two lines. | There are 4 right angles in a square or a rectangle. |
Key Stage 4
Meaning
A right angle is an angle of exactly 90° between two lines.
About Right Angles
- right angles are labelled between two lines that cross over at 90° to each other.
- Two lines at right angles may be called perpendicular.
- A line at right angles to a surface is called a normal line.
- The angles inside a square or rectangle are right angles.
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| A diagram showing a right angle between two lines. | There are 4 right angles in a square or a rectangle. |