if we have a circle with perimeter 30 cm, how many cm^2(exactly) are in the circle area? in other words, how many square units(cm^2)(but exactly) are there, if i were count them?
Thanks for your supports and sorry for my languages...
if we have a circle with perimeter 30 cm, how many cm^2(exactly) are in the circle area? in other words, how many square units(cm^2)(but exactly) are there, if i were count them?
Thanks for your supports and sorry for my languages...