maths

Saphire Rodigruex
Flashcards by Saphire Rodigruex, updated more than 1 year ago
Saphire Rodigruex
Created by Saphire Rodigruex over 5 years ago
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angles

Resource summary

Question Answer
What is a corresponding angle? Corresponding angles are in a c shape and can be any way round. If the two angles are in the same position on the line they are the same.
What is an alternate angle? Alternate angles are in a z shape and can be any way round. If the two angles are in the same position on the line they are the same.
What is a co- interior angle? Co- interior angles are in a c shape and can be any way round. If the two angles are in the same position on the line they are the same.
Other ways of finding angles. A line is 180 degrees. So for example if you just found a co- interior angle and both the angles were both 50 degrees and there was one more angle left that angle would be 80 degrees because that is all that is left on the line.
Multiplying and dividing negative numbers Rules -even number of minus signs equals a positive number - odd number of minus signs equals a negative number
Adding and subtracting negative numbers Rules To minus signs next to each other turn it into a plus # useful to use a number line
Sample space diagrams
How to use sample space diagrams Look a the sign in the top right box. This tells you what to do with your numbers.
To work out the percentage To work out the percentage you must see how many options there are e.g- 14 Then how many of the thing your looking for e.g- how many fours= 7 so 7/14 that cancels down to one half which is equal to 50%
HCF? Highest common factor.- found by listing all the prime factors of both numbers and timesing them together
LCM? Lowest common multiple- found by finding out the most common multiple in each number timesed by how many of it. The two numbers timesed together
Surface area
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