FIND MISSING MEASURES USING COSINE RULE WORKSHEET

Solve for the unknown in each triangle. Round to the nearest hundredth.

Problem 1 :

find-missing-measure-using-cos-rule-q1

Solution

Problem 2 :

find-missing-measure-using-cos-rule-q2.png

Solution

Problem 3 :

find-missing-measure-using-cos-rule-q3.png

Problem 4 :

find-missing-measure-using-cos-rule-q4.png

Solution

Problem 5 :

find-missing-measure-using-cos-rule-q5.png

Solution

Problem 6 :

find-missing-measure-using-cos-rule-q6.png

Solution

Answer Key

1)  x = 14.8 m

2)  𝜃=46.92°

3)  𝜃=103.9°

4)  x = 17.4 m

5)  x = 53.46 cm

6)   𝜃 = 32.3°

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