4206100
Description
Mind Map by Kayley McCormack, updated more than 1 year ago
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Created by Kayley McCormack
about 9 years ago
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MATHS REVISON
- Pythagoras' theorem
- A²+B²=C²
- Only works on right
angled triangles
- c is always the longest side
(hypotenuse) opposite the right
angle
- use the numbers fro the triangle work out the sum
the answer is then C² find the square root and that's
the answer
- A²+B²=C²
- volume
- can also be called capacity
- cuboid-lenthxwidthxheight=volume
of cuboid
- prism-cross'sectionxlength=volume
of prism
- pyramid-areaofbasexheight*3
- cone-areafbasexheight*3
- hemisphere-radius³xpix4*3*2
- can also be called capacity
- trigonometry
- 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
- ratio - sine, calc button
- sin, rule - soh,
equation formula -
sinX=o/h
- ratio - cosine, calc
button - cos, rule - cah,
equation formula -
cosX=a/h
- ratio - tangent, calc
button - tan, rule - toa,
equation
formula-tanX=o/a
- O goes is opposite the angle
h is opposite the right angle
a is the remaining line
- 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
- averages
- mode-mostcommon,
median-middlevaluewheninorder,
mean-totalitems*numberofitems,
range-differencebetweenhighestandlowest
- mode-mostcommon,
median-middlevaluewheninorder,
mean-totalitems*numberofitems,
range-differencebetweenhighestandlowest
- sequences
- 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
- dn + (a - d)
- 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
- standard form
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