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2.025 Perimeter of circular shapes

Interactive practice questions

Find the circumference of the circle shown, correct to two decimal places.

 

A circle with a diameter is presented. The length of the diameter is measured 13 cm. 
Easy
< 1min

Find the circumference of the circle shown, correct to two decimal places.

Easy
1min

If the radius of a circle is equal to $27$27 cm, find its circumference correct to one decimal place.

Easy
< 1min

A circular running track has a diameter of $23$23 metres. How many laps must be completed to run $1600$1600 metres?

Give your answer correct to one decimal place.

Medium
2min
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Outcomes

3.1.2.1

use metric units of length (millimetres, centimetres, metres, kilometres), their abbreviations (mm, cm, m, km), conversions between them, and appropriate levels of accuracy and choice of units

3.1.2.3

use formulas to calculate perimeters of familiar shapes, including triangles, squares, rectangles, polygons, circles and arc lengths

3.1.2.4

use formulas to calculate perimeters of familiar composite shapes [complex]

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