Created by alliaya proctor
about 7 years ago
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Maths revision
Formula
Scalene triangle with b (base) and height (h) labelledScalene triangle with b (base) and height (h) labelled
A formula is a calculation for a specific purpose, for example converting Fahrenheit to Celsius or vice versa. A formula is also always true, no matter what values are put in.
Substitution
Substitution means putting numbers in place of letters to calculate the value of an expression.