Sine Rule
Cosine Rule
Formulas
Sine/Cosine Rule
100

What does the capital letter in the formulas represent?

What are angles?

100

What does the lower case letters in the formula represent?

What are sides?

100

Which rule does this formula represent?

What is the Sine Rule?

100

What is the Sine Rule?

200

Under what conditions is the Sine Rule used?

What is 

•two angles and one side, or

•two sides and a non-included angle.

200

Under what conditions is the cosine rule used?

What is

•three sides or

•two sides and the included angle.

200

Which rule do these formulas represent?


What is the Cosine Rule?

200

What is the Cosine Rule?

300

Find angle b.

What is 76 degrees?

300

Find angle x.

What is 57 degrees?

300

What part of the triangle are these formulas used to find?

What are angles?

300

What is the Cosine Rule?

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