Question

A cylinder and a rectangular prism have the same volume and same height. The base of the prism is a square with side length 7 cm.



What is the approximate radius of the cylinder?









A.
4.0 cm







B.
3.5 cm







C.
2.2 cm







D.
1.5 cm
HELP

Answer 1

volume ofcylinder = pi r^2 h
where h = height of the cylinder
r = radius of the cylinder

and volume of rectangular prism = l.b.h.
where l = length
b = breadth
and h = height

and since as it has been given that its a square with side length 7cm
therefore l *b= 7*7


now try equating these two equations

Answer 2

if u still find a problem.. just let me know

Answer 3

I got b