Law of Sines and Cosines

True or False.
The three interior angles of a triangle add to

 $180^{\degree}$  .

• True

• False

True or False.

An isosceles triangle has two congruent sides and two congruent angles called base angles.

• True

• False

True or False.

An equilateral triangle has 3 congruent sides and 3 congruent angles.

• True

• False

Which reason for Law of Sines produces the ambiguous case?

Determine if the Law of Sines or Law of Cosines can be used to find another measure of the triangle.

• Law of Sines

• Law of Cosines

Determine if the Law of Sines or Law of Cosines can be used to find another measure of the triangle.

• Law of Sines

• Law of Cosines

Determine if the Law of Sines or Law of Cosines can be used to find another measure of the triangle.

 $C=101^{\degree},\ a=\frac{3}{8},\ b=\frac{3}{4}$  

• Law of Sines

• Law of Cosines

True or False.

The largest side of a triangle is opposite the smallest angle and the smallest side is opposite the largest angle.

• True

• False

• 0

• 1

• 2

• 0

• 1

• 2