# all maths

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• Created by: natalie
• Created on: 13-04-16 13:21
polygon
a 2d shape made up of straight sides
1 of 15
vertically opposite angles
are equal
2 of 15
Bearings
measure of direction. 3 rules: always measured from north. always measured clockwise. always have 3 digits. when the angle is less than 100 one or two 0's are put in front so it has 3 figures
3 of 15
HCF
HIGHEST COMMON FACTOR
4 of 15
LCM
LOWEST COMMON FACTOR
5 of 15
prime numbers
a number with only two factors, one and itself
6 of 15
simplifying
collecting like terms
7 of 15
parallel lines
if lines are parallel, they have the same gradient
8 of 15
a random sample
where everyone in the population has equal chance of being in sample
9 of 15
stratified sample
number sampled from each catagory is in proportion to number n that catagory
10 of 15
Prism
a 3d shape with a consisitant cross-section. if cut at any point it'll be the same shape
11 of 15
polyhedra
3d shape with flat faces and straight edges (some prisms are them)
12 of 15
area of triangle
1/2 (bxh)
13 of 15
trapezium area
bxh
14 of 15
pythagoras
a2 plus b2 = c2 (c2 is longest side)
15 of 15

## Other cards in this set

### Card 2

#### Front

vertically opposite angles

are equal

Bearings

HCF

LCM