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Angle and Position

Here are some tools to help you with
understanding angles and how to use protractors

Angle tools to help you visualise

Angle & Position - How to use a protractor

'Angle & Position' Practice Worksheets

Calculate the length of an arc

This section is a work in progress. Come back again soon.

Take me back to the D&T skills 'home' page

Take me back to the D&T numeracy page

What assessed numeracy skills do I need to learn in my D&T lessons?

a) Length → b) Weight → c) Perimeter → d) Capacity → e) Area → f) Volume

What other mathematics skills can I get help understanding using this site?

g) Arithmetic → h) Angle → i) Trigonometry → j) Algebra → k) Geometry

Angle tools to help you visualise

'Acute', 'obtuse' and 'reflex' angles.

The internal (inside) angles of a triangle add up to 180°

The internal (inside) angles of any quadrilateral add up to 360°

Angle & Position - How to use a protractor

These posters will help you remember the area formulae for common 'plane shapes'.

Poster - Using a Protractor

Try having a go yourself, using the tool below

You can rotate the protractor by toggling the intersection point at its centre. It will turn blue.
Holding shift will restrict the line to 0°, 45°, 90°, etc.

'Angle & Position' Practice Worksheets

Poster - Parts of a Circle

Calculate the length of an arc

If you know the radius of rotation, you can calculate the length of an arc (the distance travelled by a point as it rotates about a centre).
We do this using an alternative method of calculating angle, called radians. Radians are often used by engineers and mathematicians.

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