Adam Flashcards

1
Q

Area of a rectangle

A

Base x Height

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2
Q

Area of a parallelogram

A

Base x Height

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3
Q

Area of a triangle

A

Base x height divided by 2

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4
Q

Area of a trapezium

A

Top add bottom divided by 2, times height.

It doesn’t matter, Rachel, I get given this one.

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5
Q

The volume of a cuboid

A

Base x height x depth

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6
Q

Volume of a prism

A

Area of cross section x length

It doesn’t matter, Rachel, I get given this one.

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7
Q

Volume of a cylinder

A

pi x (radius squared) x length

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8
Q

Circumference of a circle

A

pi x diameter

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9
Q

pythagoras

A

longest side squared equals the other two sides squared and added together

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10
Q

Sin (theta) =

A

a/c

It doesn’t matter, Rachel, I get given this one.

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11
Q

Cos(theta) =

A

b/c

It doesn’t matter, Rachel, I get given this one.

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12
Q

Tan (theta) =

A

a/b

It doesn’t matter, Rachel, I get given this one.

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13
Q

Speed

A

distance over time

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14
Q

Density

A

Mass over volume

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15
Q

Pressure

A

Force over area

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16
Q

Volume of a pyramid

A

One third of the base times the height

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17
Q

Quadratic Equation

A

minus b, plus or minus the square root of b squared minus 4 times a times c all over 2 times a.

It doesn’t matter, Rachel, I get given this one.

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18
Q

Sine rule (to find a length)

A

a over sine a = b over sine b

It doesn’t matter, Rachel, I get given this one.

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19
Q

Sine rule for area of a triangle

A

half times a times b times sine C

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20
Q

Cosine rule to find a side

A

a squared equals b squared plus c squared minus 2 times b x c x cos A

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21
Q

Equation of a straight line

A

y = mx + c

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22
Q

How to find the gradient

A

change in y over change in x

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23
Q

tangent and a radius…

A

meet at a right angle

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24
Q

angle at the circumference equals…

A

…half the angle in the centre

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25
opposite angles in a cyclic quadrilateral...
add to 180 degrees
26
the perpendicular bisector of a chord...
...passes through the center of the circle
27
tangents to a point
are equal
28
the angle in a semicircle equals (Circle theorem)
a right angle!
29
proper name for 'Z angles'
alternate angles
30
proper name for 'C angles'
Supplementary or co-interior angles
31
Proper name for 'F angles'
Corresponding angles
32
Compound interest
Original amount x decimal multiplier to the power of how long.
33
Area of a Sector
(Angle over 360) x pi x radius squared.
34
Arc length
(Angle over 360) x pi x diameter.
35
Surface area of a sphere
4 x pi x r squared
36
volume of a cone
1/3 x radius squared x pi x height
37
Curved surface area of a cone
pi x radius x length
38
Volume of a sphere
4/3 pi x radius cubed
39
Alternate angles...
Are equal
40
Corresponding angles...
Are equal
41
Co interior angles
Add to 180
42
How do you find the mean?
Add them all together and divide by how many
43
How do you find the median?
Put them in order and it's the one in the middle.
44
How do you find the mode?
It's the one that appears the most.
45
How do you find 10%
Divide by ten
46
How do you find 1%
Divide by 100
47
Y is directly proportional to x
y=kx
48
y is inversely proportional to x
y=k/x
49
Frequency density
Frequency/Class width
50
If the transformation is in the brackets ie F(x+2)
You do the change to the x coordinate. And you do the opposite thing.
51
If the transformation is out of the brackets. ie F(x) + 2
You do the change to the y coordinate.
52
The gradient of parallel lines....
are equal
53
The gradients of perpendicular lines....
Multiply to make -1 (Are the negative reciprocal of each other)
54
Sum of interior angles in a polygon
(number of sides - 2) times 180
55
Sin 0
0
56
Sin 30
1/2
57
Sin 45
1 over root 2 root 2 over 2 (rationalised)
58
Sin 60
root 3 over 2
59
Sin 90
1
60
Cos 0
1
61
Cos 30
Root 3 over 2
62
Cos 45
1 over root 2 or root 2 over 2 (rationalised)
63
cos 60
a half
64
cos 90
0
65
Tan 0
0
66
Tan 30
1 over root 3 or root 3 over 3
67
Tan 45
1
68
Tan 60
Root 3
69
Tan 90
KABOOM! You've just exploded the universe. This answer doesn't exist.
70
What does the m stand for in y=mx+c?
The gradiant
71
What does the c stand for in y=mx+c
Where the line cuts the y axis
72
Y is directly proportional to X
y=kx
73
Y is inversely proportional to X
y=k/x
74
Cosine rule to find an angle
CosA = (b squared + c squared - a squared) all over 2bc
75
Anything to the power of 0
1
76
1 squared
1
77
2 squared
4
78
3 squared
9
79
4 squared
16
80
5 Squared
25
81
6 squared
36
82
7 squared
49
83
8 squared
64
84
9 Squared
81
85
10 Squared
100
86
11 Squared
121
87
12 Squared
144
88
1 cubed
1
89
2 cubed
8
90
3 cubed
27
91
4 cubed
64
92
5 cubed
125
93
10 cubed
1000
94
A U B
Everything in all of A and all of B and the middle
95
A n B
The bit in the middle.
96
What is the range?
The biggest number take away the smallest.
97
What are the three equations you need for quadratic sequences?
a+b+c 3a+b 2a
98
percentage change
(new amount - old amount) / old amount all multiplied by 100
99
Cosine rule to find an angle
CosA=(b squared + c squared - a squared) over 2 x b x c
100
What does B' mean?
Everything that isn't B The dash means "not"
101
What are the 4 ways to prove congruence
SSS SAS ASA RHS
102
What kind of graph is this?
A quadratic graph. X squared
103
What kind of graph is this?
A negative reciprocal graph. -1/x
104
What kind of graph is this?
Sin graph
105
What kind of graph is this?
Cubic graph X cubed
106
What kind of graph is this?
Negative quadratic graph -x squared
107
What kind of graph is this?
Reciprocal graph 1/x
108
What kind of graph is this?
Straight line graph y=mx+c
109