# Maths Formula

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• Created by: becky245
• Created on: 25-05-17 05:00
Volume of a prism
area of cross section x length
1 of 36
Volume of a sphere
4/3 pi r squared
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Surface area of a sphere
4 pi r squared
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Volume of a cone
1/3 pi r squared x height
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Curved surface area of a cone
pi x r x length
5 of 36
Cosine rule
a2 = b2 + c2 - 2bc Cos A
6 of 36
Density
Mass / Volume
7 of 36
Speed
Distance/ Time
8 of 36
Pressure
Force/Area
9 of 36
Circumference of a circle
Pi x d
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Area of parralleogram
base x height
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Area of a sector
x / 360 times Area of Circle
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Length of arc
x / 360 times Circumferance
13 of 36
Anything to the power 1 is
just itself
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Difference of two squares
a2 - b2 = (a + b)(a - b)
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Acceleration
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Deceleration
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Flat sections on a graph are
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Area under graph is
distance travelled
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Angles in triangle equal
180 degrees
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Angles on straight line
180 degrees
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360 degrees
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Areas round a point
360 degrees
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Alternate angles
the same (z shape)
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Allied angles
add up to 180 (c or u shaped)
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Corresponding angles
the same (F shape)
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90 degrees
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an isosceles triangle
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Perpendicular bisector of a chord passes through the
centre of a circle
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Angle at centre of circle equals
Twice the angle at the edge
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Angle in a half/semicircle is
90 degrees
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Angles in same segment are
equal
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Tangents from same point are
equal length
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what does congruent mean?
same size and shape, just rotated
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Triangles are similar if
all angles match up, or all 3 sides are portional
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Triangles are similar if
all angles match up, or all 3 sides are proportional
36 of 36

## Other cards in this set

### Card 2

#### Front

Volume of a sphere

4/3 pi r squared

### Card 3

#### Front

Surface area of a sphere

Volume of a cone

### Card 5

#### Front

Curved surface area of a cone

#### Back

Report

does not werk

1/10 do not recommend

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