Academics – Mathematics : 2012/JUL/09
Question
Q9. A solid metal cylinder of diameter 20 cm and length 36 cm has six holes drilled through it as shown in Fig Q9. All six holes have a diameter of 3 cm and are drilled parallel to the axis of the cylinder.
Calculate EACH of the following:
(a) The total surface area of the original cylinder;
(b) The percentage increase in the total surface area after the six holes have been drilled;
(c) The percentage decrease in volume of the solid.
Asked in Year/Month/Ques No.
Hello Guest User,
Answers are available via our app only.
Please buy a membership plan and login via our app to view answers.
Please buy a membership plan and login via our app to view answers.
Download our App
