Law of Sines and Cosines Review

• A

• B

• C

• D

Find angle Z

• 20.145 degrees

• 71.232 degrees

• 51.055 degrees

• 57.713 degrees

Which of the following should be used first in order to solve the triangle?

• Law of Sines

• Law of Cosines

• Pythagorean Theorem

• This triangle is unsolvable.

Find c.  Round to the nearest tenth.

Which of the following should be used first in order to solve the triangle?

• Law of Sines

• Law of Cosines

• Pythagorean Theorem

• This triangle is unsolvable.

Which of the following should be used first in order to solve the triangle?

• Law of Sines

• Law of Cosines

• Pythagorean Theorem

• This triangle is unsolvable.

Find a. Round to the nearest tenth.

Find all possible values for angle B.

• 70 and 110

• 85 and 95

• 12 (168 does not fit)

• 20 (160 does not fit)

In ΔKFC, k = 40, c = 49, and m∠C = 32°.

Find all possible measurements for ∠K.

• 25.6 (154.4 does not fit)

• 40.5 and 139.5

• 33.1 (146.9 does not fit)

• The given measurements cannot form a triangle.

Find m∠B to the nearest tenth of a degree.