Everything Needed To Know

Question 1

Formula for speed

Answer 1

Speed = distance over time

Question 2

Formula for density

Answer 2

Density = mass over volume

Question 3

Formula for pressure

Answer 3

Pressure = force over area

Question 4

To find a side - sine rule

Answer 4

a over Sin A
bover Sin B
c over Sin C

Question 5

Area of a non right angle traingle

Answer 5

Half ab sinC

Question 6

What is the first circle theorem

Answer 6

Two radii make an isoceles

Question 7

What is the second circle theorem

Answer 7

The angle at the centre is twice the angle at the circumference

Question 8

What is the third circle theorem

Answer 8

The angle in a semi circle is 90 degrees

Question 9

What is the fourth circle theorem

Answer 9

Angles in the same segment are equal

Question 10

What is the fifth circle theorem

Answer 10

Opposite angles in a cyclic quad add up to 180

Question 11

What is the sixth circle theorem

Answer 11

Angle between a radius and tangent is 90

Question 12

What ia the seventh circle theorem

Answer 12

Two tangents meet at eaual length

Question 13

What is the 8 circle theorem

Answer 13

The alternate segment theorem

Question 14

What do you need for rotation

Answer 14

Centre of rotation
Angle
Direction

Question 15

When reflecting a shape and the mirror line is

Answer 15

Horizontal or vertical count to the line
If mirror line is diagonal count diagonal to the line

Question 16

What is a vector

Answer 16

A vector tells you the direction to move a shape

Question 17

The number at the top of the vector is

Answer 17

Left or right

Question 18

The number at the bottom of the vector is

Answer 18

Up or down

Question 19

For enlargements you need

Answer 19

Scale factor
Centre of enlargement
Scale factor

Question 20

What is scale factor

Answer 20

New image over original

Question 21

Congruent shapes

Answer 21

Same shape
Same size

Question 22

Similar shapes

Answer 22

Same shape

Question 23

Proving congruence

Answer 23

SAS
ASA
RHS
SSS

Question 24

An isoceles triangle

Answer 24

Has 2 sides that are same length
2 angles that are the same ( base angles )

Question 25

Equailateral triangle

Answer 25

All angles are the same All sides are the same

Question 26

Steps for inverse functions

Answer 26

Step 1 - write f ( x) as y Step 2 - make x the subject Step 3 - swap the y and x over Stel 4 - f-1 ( x) =

Question 27

Direct proportion

Answer 27

A is in proportion to B A = KB

Question 28

Inverse proportion

Answer 28

Y proportion sign 1 over k Y = k over x

Question 29

What is the method for capture recapture

Answer 29

Marker over collected = initially marked over total population

Question 30

Area of a trapezium

Answer 30

A + b over 2 x h

Question 31

Anything to the power of 0 is

Answer 31

1:

Question 32

A number with the power of a negative number is

Answer 32

1 over the number to the power of the other number

Question 33

When using the quadratic formula what is thr quadratic form

Answer 33

Axsquared + bx + c

Question 34

What is the formula for completing the square

Answer 34

( x - a ) squared - whatever that is + b

Question 35

Steps for completing the square

Answer 35

x squared - 6x + 2 ( x - half number ) squared - whatever thst is and then add oe minus whatever u have which in this case is +2

Question 36

Sin 0

Answer 36

0

Question 37

Sin 30

Answer 37

Half

Question 38

Sin 45

Answer 38

Root 2 over 2

Question 39

Sin 60

Answer 39

Root 3 over 2

Question 40

Sin 90

Answer 40

1

Question 41

Cos 0

Answer 41

1

Question 42

Cos 30

Answer 42

Root 3 over 2

Question 43

Cos 45

Answer 43

Root 2 over 2

Question 44

Cos 60

Answer 44

Half

Question 45

Cos 90

Answer 45

Half

Question 46

Tan 0

Answer 46

0

Question 47

Tan 30

Answer 47

1 over root 3

Question 48

Tan 45

Answer 48

1

Question 49

Tan 60

Answer 49

Root 3

Question 50

What can't you add densities or volumes

Answer 50

Densities

Question 51

Perpendicular means

Answer 51

Negative reciprocal

Question 52

Turning points of a graph

Answer 52

Y = a ( x - h ) sqaured + k Hand k are turning points