Alg2 Un8Wk4 - Law of Cosines

Law of Sines & Cosines

Multiple Choice

8.Solve for x

• 3.85

• 4.25

• 3.35

• 5.65

Fill in the Blanks

Multiple Choice

Find QR

• 34.7 km
• 2.2 km
• 13.74
• 31.1 km
• none of these

Multiple Choice

If three sides of a triangle are given, the Law of ____ is used to solve the triangle.

• Cosines
• Sines
• Tangent
• Cosecents

Multiple Choice

If two angles and a side of a triangle are given, the Law of ____ is used to solve the triangle.

• Cosines
• Sines
• Tangent
• Cosecents

Match

Match the following

• three sides (SSS)

• two angles and a side (ASA or AAS)

• two sides and an opposite angle (SSA)

• two sides and the included angle (SAS)

law of cosines

law of sines

law of sines

law of cosines

• law of cosines

• law of sines

• law of sines

• law of cosines

Multiple Choice

Find measure of angle C

• A
• B
• C
• D
• none of these

Multiple Choice

Use Law of Cosines to find angle T

• 62.2°

• 53.1°

• 59.5°

• 64.7°

• none of these

Fill in the Blanks

Poll

After this review, I feel ---- about solving for the missing side or angle of an oblique triangle using the law of sines and cosines

• very good/confident

• good/confident

• eh, so-so

• lost; I don't know what I'm doing.

• other: my thoughts/feelings are not listed here