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Triangles in Real Life

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Page 1: Law of Cosines Part 1

Triangles in Real Life

Page 2: Law of Cosines Part 1

Triangles in Real Life

Page 3: Law of Cosines Part 1

Triangles in Real Life

Page 4: Law of Cosines Part 1

Triangles in Real Life

Page 5: Law of Cosines Part 1

Today’s Objectives

Review right triangle trigonometry and triangle postulates

Page 6: Law of Cosines Part 1

Today’s Objectives

Review right triangle trigonometry and triangle postulates

Use right triangle trigonometry to develop the law of cosines

Page 7: Law of Cosines Part 1

Today’s Objectives

Review right triangle trigonometry and triangle postulates

Use right triangle trigonometry to develop the law of cosines

Use the law of cosines to solve problems

Page 8: Law of Cosines Part 1

Review

A

BC

Page 9: Law of Cosines Part 1

Review

A

BCa = 8 cm

c = 10 cm

θ = ?

Page 10: Law of Cosines Part 1

Review

A

BC

b = ?

a = 8 cm

c = 10 cm

Page 11: Law of Cosines Part 1

Go to Chat on the Main page.

Please pause for discussion.

A

BC

b = ?

a = 8 cm

c = 10 cm

θ = ?


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