Math 4 Law of Sine and Cosine Warm-up

Front

What is the Law of Sines?

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Front

When do you use the Law of Sines?

Back

Use the Law of Sines when you have either two angles and one side (AAS or ASA) or two sides and a non-included angle (SSA).

Front

What is the Law of Cosines?

Back

Front

When do you use the Law of Cosines?

Back

Use the Law of Cosines when you have two sides and the included angle (SAS) or all three sides (SSS) of a triangle.

Front

What is the formula to find an angle using the Law of Cosines?

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Front

What is the relationship between sine and cosine in a right triangle?

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In a right triangle, the sine of an angle is the ratio of the opposite side to the hypotenuse, while the cosine is the ratio of the adjacent side to the hypotenuse.

Front

How do you find the area of a triangle using the Law of Sines?

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Front

What is the sine of an angle in a right triangle?

Back

The sine of an angle is defined as the ratio of the length of the opposite side to the length of the hypotenuse.

Front

What is the cosine of an angle in a right triangle?

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The cosine of an angle is defined as the ratio of the length of the adjacent side to the length of the hypotenuse.

Front

What is the Pythagorean theorem?

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