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# Shape and Space

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## Emily Hughes

on 22 May 2016

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#### Transcript of Shape and Space

Angles
Angle questions
Angles in polygons
To find an EXTERIOR angle of a REGULAR polygon
(all sides the same, all angles the same):
Do 360 divided by the number of sides.
Circles
Volume of prisms
Transformations
Pythagoras
Use this when you have two sides of a right-angled
triangle, and need the other side.

Geometry
Alternate
Corresponding
Opposite
Look for F, Z, X shapes
The INTERIOR angle is 180 minus the exterior angle.
You get this on the formula page at the front of the exam.
Does the shape look exactly the same,
only in a different place?
TRANSLATION
- you need

Is the shape bigger / smaller?
ENLARGEMENT
- you need

Can you find a mirror line?
REFLECTION
- you need

None of the above?
ROTATION
- you need
how far across
how far up/down
Centre
Centre of enlargment
Scale factor (how many times bigger?)
The mirror line
Centre of rotation
Angle of rotation
Direction (clockwise/anticlockwise)
Trignometry
Alternate
Corresponding
Opposite