The formula for finding the circumference of a circle is Equation: C = 2(pi)r . What can we do if we know the circumference but want to know the radius?
Rearange the equation to make r the subject of the formula. So we divide both sides by 2(pi)
AM
Related Maths GCSE answers
All answers ▸In a class there are 12 girls and 18 boys. what proportion of the girls are there in the class? Simplify
A bag has 24 sweet of different colours: 10 red, 8 blue and 6 yellow. What is the probabilty of not getting a blue sweet ?
find the values of x when 3x^2 - 6x - 9
Solve the simultaneous equations. 2x+5y=-4 and 7x+y=19