How do you calculate the area of a circle?

The equation is 2πr.  That is 2 x pi x the radius (not the diameter!)

NO

Related Maths GCSE answers

All answers ▸

Solve for x : 2x-15=-2x-7


How do you work out the area of a triangle?


Expand (2x + 3)(x - 1)


1/4 of a number is 20. What is 5 times the number?