Question 33176
I think you might know the formulas to solve these problems...ANy way if you dont have them .. i am giving them now and try to substitute the values for yourself and solve them which only helps you .. we can solve them for you ... but we want you to solve them for yourself ... you just need to substitute the values and know for yourself...

1) circumference of circle : 2*{{{pi}}}*r = d*{{{pi}}} as r = 2d 
here r = radii and d = diameter, pi= 3.14


2)Surface area of cylinder : 2 *{{{pi}}}* r* h + 2*{{{ pi}}}*{{{ r^2}}}
2*{{{pi}}}*r(r+h) = d*{{{pi}}}(2*d + h)
where r = radii and h = height and d = diameter,pi = 3.14


3)Volume of cubeoid = x*y*z where x,y and z are the dimensions of the cubeoid


4) volume of cylinder = {{{pi}}}*{{{r^2}}}*h 
  ={{{pi}}}*{{{(2*d)^2}}}*h 
  ={{{pi}}}*{{{4*d^2}}}*h 
  
where r = radii and h = height and d = diameter (2*radius),pi = 3.14


5) Volume of cone = {{{(pi*(r^2)*h)/3}}} = {{{(pi*(4*d^2)*h)/3}}}

where h = height of the cone,d = diameter of cone,r = radius,pi = 3.14


6) volume of sphere:{{{4*(pi)*(r^3)/3}}}= {{{4*(pi)*(8*d^3)/3}}}
where pi= 3.14 and d = diameter