3990 Learning at home workbook 6 ebook
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TRIANGLES<br />
There are three main types of triangles.<br />
Equil<strong>at</strong>eral triangles have three equal sides and angles.<br />
Isosceles triangles have two equal sides and angles.<br />
Scalene triangles have no equal sides or angles.<br />
1. Label each triangle below using E (equil<strong>at</strong>eral), I (isoceles) or S (scalene).<br />
2. Label the triangles. Measure their sides using a ruler and their angles using a protractor.<br />
(a) (b) (c)<br />
triangle triangle triangle<br />
side 1: 2: 3: side 1: 2: 3: side 1: 2: 3:<br />
angle 1: 2: 3: angle 1: 2: 3: angle 1: 2: 3:<br />
3. Draw an example of each type of triangle below.<br />
Equil<strong>at</strong>eral Isosceles Scalene<br />
© R.I.C. Public<strong>at</strong>ions<br />
Low resolution display copy only<br />
Which type of triangle do you think is most commonly used in construction?<br />
Why?<br />
R.I.C. Public<strong>at</strong>ions® www.ricpublic<strong>at</strong>ions.com.au 74 ISBN 978-1-922313-88-1 <strong>Learning</strong> <strong>at</strong> <strong>home</strong> <strong>workbook</strong> 6
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