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Maths Formulas > William > Flashcards

William Flashcards

1
Q

Area of a rectangle

A

Base times height

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2
Q

Area of a parallelogram

A

Base times height

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3
Q

Area of a triangle

A

Half times base times height

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4
Q

Area of a trapezium

A

top add bottom times height divided by 2

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5
Q

Volume of a cuboid

A

height times length times depth

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6
Q

Volume of a prism

A

Area of cross section times length

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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 times diameter

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9
Q

Area of a circle

A

pi times (radius squared)

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10
Q

Pythagoras

A

The longest side squared is equal to the other two sides squared and added together.

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11
Q

Sin (angle)

A

opposite over hypotenuse

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12
Q

Cos (Angle)

A

adjacent over hypotenuse

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13
Q

Tan (angle)

A

opposite over adjacent

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14
Q

Speed

A

distance over time

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15
Q

Density

A

Mass over volume

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16
Q

Pressure

A

Force over area

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17
Q

Sum of the interior angles of polygon.

A

(Number of sides - 2 ) x 180

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18
Q

How to find 10%

A

Divide by ten

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19
Q

How to find 1%

A

Divide by 100

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20
Q

Equation of a straight line

A

y=mx+c

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21
Q

How do you find the gradient?

A

difference in y over difference in x

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22
Q

How many cm in a m?

A

100

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23
Q

how many grams in a kg?

A

1000

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24
Q

Angles in a triangle add up to

A

180 degrees

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25
Q

Angles in a straight line

A

180 Degrees

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26
Q

A right angle is

A

90 Degrees

27
Q

How many meters in a kilometer?

A

1000

28
Q

What is anything to the power of 0

A

1

29
Q

Number of sides in a regular polygon if you know the exterior angle

A

360 divided by exterior angle

30
Q

1 squared

A

1

31
Q

What does reciprocal mean?

A

Stick it in a fraction

32
Q

2 squared

A

4

33
Q

3 squared

A

9

34
Q

4 squared

A

16

35
Q

5 squared

A

25

36
Q

6 squared

A

36

37
Q

7 squared

A

49

38
Q

8 squared

A

64

39
Q

9 squared

A

81

40
Q

10 squared

A

100

41
Q

11 squared

A

121

42
Q

12 squared

A

144

43
Q

13 squared

A

169

44
Q

14 squared

A

196

45
Q

15 squared

A

225

46
Q

2 cubed

A

8

47
Q

1 cubed

A

1

48
Q

3 cubed

A

27

49
Q

4 cubed

A

64

50
Q

5 cubed

A

125

51
Q

10 cubed

A

1000

52
Q

What does the m stand for in y = mx+ c

A

The gradient

53
Q

What does the c stand for in y = mx+ c

A

Where the lines cuts the y axis

54
Q

Surface area of a cylinder

A

2(pi)xradius squared + 2(pi)radiusxheight

55
Q

Volume of a cone

A

Pi x radius squared x height divided by 3

56
Q

Volume of a pyramid

A

Area of base x height divided by 3

57
Q

Volume of a sphere

A

(4/3) x pi x radius cubed

58
Q

Surface area of a sphere

A

4 x pi x radius squared

59
Q

Gradients of parallel lines

A

Are equal

60
Q

Gradients of perpendicular lines

A

Multiply together to make -1

61
Q

What do we do to the linear scale factor to get the area scale factor

A

Square it!

62
Q

What do we do to the linear scale factor to get the volume scale factor

A

Cube it!

63
Q

What are the four ways to prove congruence in triangles

A

SSS
ASA
SAS
RHS

Maths Formulas (15 decks)

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