Four circles

1) Calculate the circle radius if its area is 400 cm²
2) Calculate the radius of the circle whose circumference is 400 cm.
3) Calculate circle circumference if its area is 400 cm²
4) Calculate the circle's area if the perimeter is 400 cm.

Your answer:

cm
cm
cm
cm2


Help us improve! If you spot a mistake, please let let us know. Thank you!



Showing 1 comment:
Math student
May u help me in solving some questions esp on maths..?





You need to know the following knowledge to solve this word math problem:


 
We encourage you to watch this tutorial video on this math problem: video1

Related math problems and questions: