A rectangular sheet of aluminium foil is 44 cm long and 22 cm wide a cylinder is made out by rolling the foil along its length find the total surface area of the cylinder
Answers
Answered by
0
Step-by-step explanation:
Length of rectangular sheet = Height of
cylindrical sheet h So, Height of cylindrical sheet =44cm
According to question=>
Area of rectangular sheet = Lateral surface area of cylindrical sheet
So, I*b = 2*pi*r*h 44 *222* 3.14 * r* 44 968 276.32* r r = 3.50
r = 968/276.32
So, T. S. A. of cylindrical sheet = 2*pi*r(r+h)
=2*3.14*3.50(3.50+44)
= 21.98*47.5
= 1044.05 cm^2.
Similar questions