# Maths

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• Created by: Lizzi777
• Created on: 06-06-18 17:07

## LCM AND HCF

LCM- the bit in the middle of the venn diagram (timesed together)

HCF- the whole of the venn diagram (timesed together)

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## Simple and Compund Interest

P x (R/100) x T= Simple Interest

P x (1+ R/100)^T= Compound Interest

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## Composite functions

fg(x)

g(x) goes into f(x)

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## Sequences

Linear- 2, 4, 6, 8, 10

Fibonacci- 1,1,2,3,5,8

Geometric- 2,4,8,16,32,64

Square- 1, 4, 9, 16, 25, 36

Cube- 1, 8, 27, 64, 125

Triangular- 1, 3, 6, 10, 15, 21

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SSS

ASA

SAS

RHS

AAS

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## Constructing a perpendicular from a point to a lin

Open compass so its bigger than distance from point (P) to the line

Draw to arcs (A) (B) on the line

Draw two crossing arcs below the line (C)

Draw a line joining P to C

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## Constructing the perpendicular from a point on a l

Set compass to any length

Draw 2 arcs on the line (A) (B)

Keep the compass same length and draw 2 crossing arcs above and below the line

Draw a line connecting the 2 arcs and the point

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## Bisecting an angle

Place compass on point and draw 2 arcs that cross both lines

Draw another 2 arcs from the newly constructed arcs

Join the cross over point to the corner

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## To construct the equilateral triangle

Draw a line of any length

Open compass to this distance

Draw to crossing arcs from both corners

Join corners to crossing arcs

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## To construct a 30 degree angle

Construct 2 sides of an equalateral triangle

Do an angle bisector

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## To construct a 90 degree angle

Draw a base line

Then do a perendicular bisector

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