Maths - Pythagoras' Theorem and Trigonometry

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15 Terms

1
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How do you find the length of the hypotenuse in a right angle triangle?

a²+b²=c²

<p>a²+b²=c²</p>
2
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What is Pythagoras' Theorem?

a²+b²=c²

<p>a²+b²=c²</p>
3
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How do you find a shorter side of a right angled triangle using Pythagorus' Theorem?

a² = c² - b² or b² = c² - a²

4
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What is the side opposite of the right angle?

hypotenuse

<p>hypotenuse</p>
5
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What are the names of the three sides on a right angled triangle?

Hypotenuse, opposite and adjacent

<p>Hypotenuse, opposite and adjacent</p>
6
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What is a trigonometric ratio?

a ratio of two sides of a right triangle

<p>a ratio of two sides of a right triangle</p>
7
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What is the acronym for the trigonometry functions?

SOH CAH TOA

<p>SOH CAH TOA</p>
8
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What is the sin ratio?

sin = opposite / hypotenuse

<p>sin = opposite / hypotenuse</p>
9
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what is the cos ratio?

cos = adjacent / hypotenuse

<p>cos = adjacent / hypotenuse</p>
10
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what is the tan ratio

tan = opposite / adjacent

<p>tan = opposite / adjacent</p>
11
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What is the exact value of sin(30)?

1/2

<p>1/2</p>
12
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What is the exact value of tan(45)?

1

<p>1</p>
13
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What is the exact value of cos(0) and sin(90)?

1

14
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Bearings should usually have how many figures?

three

15
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