Law of cosines worksheet 1. For this case we will apply the following steps.

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### Applying the law of cosines.

**Law of cosines worksheet**. In the following example you will find the length of a side of a triangle using law of cosines. Some of the worksheets below are law of sines and cosines worksheet in pdf law of sines and law of cosines. Law of cosines worksheet pdf.

In the following example you will find the measure of an angle of a triangle using law of cosines. Students will practice applying the law of cosines to calculate the side length of a triangle and to calculate the measure of an angle. Students will also extend their thinking by applying the law of cosines to word problems and challenge questions.

Round to the nearest hundredth. Law of cosines substitute. Use the law of cosines to find the side opposite to the given angle.

Solve for the unknown in each triangle. Round to the nearest hundredth. 4 cases where law of cosines is the best choice use the law of sines and law of cosines to find missing dimensions.

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