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Flashcards in Other Formulae Deck (7)
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1
Q

How do you find the sum of angles in a polygon?

A

(Number of sides - 2) x 180

2
Q

What do we say when there is a question that we have to use the sine rule for?

A

‘It’s all about the opposites’ - 2 pairs of opposite sides and angles, one of them we’re trying to work out.

3
Q

What is it where we have to use the cosine rule?

A

2 sides, and an included angle.

4
Q

What is the sine rule?

A
5
Q

What is the cosine rule?

A

a2 = b2 + c2 - 2bc cosA

6
Q

In histograms, how do you work out frequency densityy?

A

Frequency density = frequency / class width

7
Q
A