Interactive practice questions
Paul is using a toilet paper roll for crafts. He has measured the toilet paper roll to have a diameter $4$4 cm and a length $10$10 cm.
What is the external surface area of the toilet paper roll?
Give your answer to the nearest two decimal places.
Easy
2min
A paint roller is cylindrical in shape. It has a diameter of $6.2$6.2cm and a width of $38.1$38.1cm. Find the area painted by the roller when it makes one revolution, correct to the nearest $0.01$0.01 cm2.
Easy
2min
Consider the following cylinder.
Medium
2min
Consider the following cylinder.
Medium
2min
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