Equations

Question 1

Speed?

Answer 1

Distance/ time

Question 2

Acceleration

Answer 2

Change in velocity/ change in time

Question 3

Volume of a cuboid

Answer 3

Length x height x width

Question 4

Volume of prism

Answer 4

Area of cross section x length

Question 5

Pythagoras

Answer 5

A squared plus b squared equals c squared

Question 6

Sin

Answer 6

Opposite/ hypotenuse

Question 7

Cos

Answer 7

Adjacent/ hypotenuse

Question 8

Tan

Answer 8

Opposite/ adjacent

Question 9

Area of a triangle

Answer 9

1/2 x base x height

1/2 absin(c)

Question 10

Area of trapezium

Answer 10

1/2 (a+b) x height

Question 11

Circumference

Answer 11

Pie x diameter

Question 12

Area of circle

Answer 12

Pie x radius^2

Question 13

Are of parellellogram

Answer 13

Base x height

Question 14

Volume of cylinder

Answer 14

Pie x radius^2 x height

Question 15

Pressure

Answer 15

Force/ area

Question 16

Arc length

Answer 16

2pie x radius x n/360

Question 17

Sector area

Answer 17

Pie x r^2 x n/360

Question 18

What is sin 0, 30, 45,60, 90

Answer 18

0- 0
30- 1/2
45- 1/route 2
60-route 3/2
90-1

Question 19

What is cos 0, 30, 45,60, 90

Answer 19

0-1
30- route 3/2
45-1/route 2
60-1/2
90-0

Question 20

What is tan 0, 30, 45,60, 90

Answer 20

0-0
30-1/route3
45-1
60-route 3
90-not needed

Question 21

Sin rule

Answer 21

A/sin(a)=B/sin(b)=C/sin(c)

Question 22

Cos rule

Answer 22

A^2=b^2+c^2-2bc cos(a)

Question 23

Frequency density

Answer 23

Frequency/ class width

Question 24

What is the symbol for or

Answer 24

U

Question 25

What is the symbol for and

Answer 25

n

Question 26

If in a Venn diagram It says A’, what does it mean?

Answer 26

A’everything apart from A (this includes the middle cross section)