2.2 cubic dm. of lead is to be drawn into a cylindrical wire 0.50 cm in diameter. Can you calculate what is the length of wire ?
volume of cylinder=2.2 cubic dm=2.2×1000 cubic cm Πr^2h=2200 r=0.5/2= 0.25cm h=11210.19 cm=112.10 metre Ans: Length of wire is 112.10 metre
A rectangular plot is half as long again as it is broad. The area of the plot is 2/3 hectares. Can you calculate the length of the plot ?
