# MATHS REVISON

Mind Map by Kayley McCormack, updated more than 1 year ago
 Created by Kayley McCormack over 4 years ago
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### Description

GCSE Maths Mind Map on MATHS REVISON, created by Kayley McCormack on 12/10/2015.

## Resource summary

MATHS REVISON
1 Pythagoras' theorem
1.1 A²+B²=C²
1.2 Only works on right angled triangles
1.3 c is always the longest side (hypotenuse) opposite the right angle
1.4 use the numbers fro the triangle work out the sum the answer is then C² find the square root and that's the answer
2 volume
2.1 can also be called capacity
2.2 cuboid-lenthxwidthxheight=volume of cuboid
2.3 prism-cross'sectionxlength=volume of prism
2.4 pyramid-areaofbasexheight*3
2.5 cone-areafbasexheight*3
3 trigonometry
3.1 find o,h,a - find the one that wont be used - write the correct formula - add the needed numbers, work out equation, use calc for answer
3.2 ratio - sine, calc button - sin, rule - soh, equation formula - sinX=o/h
3.3 ratio - cosine, calc button - cos, rule - cah, equation formula - cosX=a/h
3.4 ratio - tangent, calc button - tan, rule - toa, equation formula-tanX=o/a
3.5 O goes is opposite the angle h is opposite the right angle a is the remaining line
4 averages
4.1 mode-mostcommon, median-middlevaluewheninorder, mean-totalitems*numberofitems, range-differencebetweenhighestandlowest
5 sequences
5.1 nth term is what the sequence changes by e.g goes up by 3 then 3n and the whatever is added to the difference to get the first number e.g if its 5 its 3n+2
5.2 dn + (a - d)
6 standard form
6.1

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