How do I remember the area of a circle if it's not in the formula book?
I tend to use rhymes to remember difficult maths formulas - it makes life so much easier! For example, "I never knew how much I cared that the area of a circle is πr²".
MP
Related Maths GCSE answers
All answers ▸Solve these simultaneous equations.....3a+2b = 17 and 8a-2b= 60
If -3x + 10y = -100 and 13x + 10y = 60, solve for x and y.
I did a question the other day which expected me to know what cos(30) is without a calculator. How do I work it out?
Find x when 2x^2-4x-6=0