Maths

Created by: Akhmed22
Created on: 30-04-17 21:33

Ratio

A ratio shows the relative sizes of two or more values. Ratios can be shown in different ways.Such as, 30:50, to simplify divide by a common multiple like 10.

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Standard Form

A way of writing large or very small numbers such as, 2759000000000=2.759*10 to the power of 12. The rules are that the number has to be between 1 and 10.

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Algebra

Algebra is letters representing numbers that are combined.

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Volume

Volume of Cube/Cuboid = width x height x depth, Volume of Sphere = 4/3 x Pi x r x r x r, Volume of Cylinder = Pi x r x r x height, Volume of Cone = 1/3 x Pi x r x r x height, Volume of Pyramid = 1/3 x Area of base x height

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Trigonometry

you will substitute values into one of the trig formulas above, and solve for the missing value. For example, if you know the side adjacent to the angle and need to know the hypotenuse, you can use the formula for cosine and solve for the length you.

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The three formulas in Trigonometry

Sin, Tan, Cos

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How to work out Sin?

Sin=Opposite / Hypotenuse

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How to work out Cos?

Cos=Adjacent / Hypotenuse

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How to work out Tan?

Tan=Opposite / Adjacent

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How to remember the formula.

SOH=Sex, On, Hard CAH=Concrete, Always, Hurts TAN=The, Others, ***

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Other cards in this set

Card 2

Front

A way of writing large or very small numbers such as, 2759000000000=2.759*10 to the power of 12. The rules are that the number has to be between 1 and 10.