Question

Raman is wrapping a can of paint to gift it to a friend. If the can is 12 cm high and has a diameter of 14 inches, how many square inches of wrapping paper will be used?

• A. 836 $c{m}^2$
• B. 728 $c{m}^2$
• C. 876 $c{m}^2$
• D. 968 $c{m}^2$

Answer 1

The correct option is A 836 $c{m}^2$

Given,
diameter (d) = 14 cm
So, radius (r) = 7 cm
height (h) = 12 cm
The total surface area is given by 2(π)(r)(r+h)
Hence, total surface area = 2(3.14)(7)(7) + 2 $\times$ (3.14) $\times$ 7 $\times$ 12
Surface Area = (308 + 528 ) $c{m}^2$
= 836 $c{m}^2$ of wrapping paper.