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(RPL) Assessment Tool Kit - WestOne

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Candidate’s name<br />

Problem 4 – Trigonometry<br />

MEM50205 Diploma of Engineering – Technical (Mechanical)<br />

Section 4 – Practical Tasks and Observation Recording Sheets<br />

Demonstration/Observation Checklist<br />

Skill Set 1 – Engineering foundations<br />

Task 2 – Maths assessment<br />

a) Use Pythagoras' theorem to find the missing sides of these right-angled triangles.<br />

1 ? 2 ?<br />

45º<br />

1 1<br />

b) Use these triangles to complete the following table.<br />

30º 45º 60º<br />

sin<br />

cos<br />

tan<br />

60º<br />

c) Joan walks 5 km north, then 3.6 km east.<br />

i. Put these distances onto the appropriate sides of the triangle below.<br />

ii. Find the angle, º the bearing that Joan has effectively walked along.<br />

Page 83 of 206 © Department of Education and Training 2009<br />

Version 1, July 2009

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