Calculate the circle circumfrance's upper bound if the area is 400cm(square)

5 months ago@Shadow

5 months ago@theDeviliscoming

5 months agois there a picture

5 months agonope

5 months agoThe only given thing is 400 cm^2 area And they want you to calculate it in upper bound and lower bound..?

5 months agothey didnt give me the raduis though

5 months agonvm i think its r≈11.28

5 months agoso is it 11.20 and 11.30? @Shadow

5 months agodo you know formula for circumference of a circle ?

5 months agoarea = 400 cm^2 you need to know formula of area of a circle too

5 months agofrom formula of area you can calcule the radius value and just substitute in place of radius inside formula of circumference hope helped

5 months agoarea =pi*r^2 400 = 3,14 *r^2 r^2 = 400/3,14 = 127,38 r = sqrt(127,38 = 11,28 cm yes you yre right with this

5 months agoyou are right sorry

5 months agoand now just use this value of radius and calcule easy the circumference value

5 months agook. ?

5 months agodo you know formula for circumference ?

5 months agoC = 2*pi*r

5 months agoi need to go now it"s ok ?

5 months agolock ???

5 months agoC=2*3,14*11,28 = ?

5 months agobye bye

5 months agothank you ! @jhonyy9

5 months ago