Ritu plans a charity drive. she makes 20 cylindrical donation boxes with a base diameter of 14 cm and a height of 20cm and plans to decorate its side with decorative paper. find how much paper is required to cover the charity box. what value is depicted by Ritu?
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Step-by-step explanation:
diameter= 14
radius=14/2= 7
h= 20
tsa(total surface area) of 20 cylinder/paper require to cover the charity box= 20{ 2πr(r+h)}
= 20{2*22/7 *7cm (7+20cm)
=20(2*22*27)cm^2
=20*1188cm^2
=23760cm^2
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