Lesson details

Key learning points

  1. In this lesson, we will calculate the surface area of a cylinder to 3 significant figures. We will learn the appropriate formula for this calculation and practise finding the surface area when provided with the radius or diameter, and the length of the cylinder.

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3 Questions

Q1.
Work out the radius of the cylinder. Give your answer to 1 decimal place.
Correct answer: 1.7 cm
3 cm
3.4 cm
6 cm
Q2.
Work out the diameter of the cylinder. Give your answer to 1 decimal place.
Correct answer: 15.5 m
4.4 m
7.7 m
8.7 m
Q3.
Work out the radius of the half cylinder.
1.6 cm
Correct answer: 2.3 cm
3.3 cm
4.6 cm

3 Questions

Q1.
Calculate the surface area of the cylinder. Give your answer in terms of π
(25π + 45) cm²
(50π + 45) cm²
115π cm²
Correct answer: 140π cm²
Q2.
Calculate the surface area of the cylinder. Give your answer to 1 decimal place
Correct answer: 1074.4 cm²
1583.4 cm²
2601.2 cm²
820.0 cm²
Q3.
Calculate the surface area of the half cylinder. Give your answer to 1 decimal place
113.1 cm²
Correct answer: 194.2 cm²
226.2 cm²
282.2 cm²

Lesson appears in

UnitMaths / Cylinders