3990 Learning at home workbook 6 ebook
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MEASURING PERIMETER<br />
Perimeter is the distance around a shape or area. It can be measured in mm, cm, m or km.<br />
The perimeter of a circle is called the circumference.<br />
1. Record the perimeter of these shapes by counting the<br />
outside squares.<br />
2. Measure each side of these shapes in cm<br />
and add them to find their perimeter.<br />
3. Estim<strong>at</strong>e and measure the perimeter of these objects.<br />
Object Estim<strong>at</strong>e Measured<br />
(a) dictionary between and cm P = + + + cm<br />
© R.I.C. Public<strong>at</strong>ions<br />
Low resolution display copy only<br />
(b) plastic milk bottle top between and mm P = + + + mm<br />
(c) coaster between and cm P = + + + cm<br />
Measure the perimeter/circumference of the top<br />
of the class rubbish bin using a tape measure. Perimeter = cm<br />
P =<br />
P =<br />
P =<br />
cm<br />
mm<br />
cm<br />
R.I.C. Public<strong>at</strong>ions® www.ricpublic<strong>at</strong>ions.com.au 79 ISBN 978-1-922313-88-1 <strong>Learning</strong> <strong>at</strong> <strong>home</strong> <strong>workbook</strong> 6
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