Week 3 - Laws of Sine and Cosine

Fill in the Blanks

Fill in the Blanks

Multiple Choice

Which ratio can be used to express the length of DE?

• 12/(cos 42)

• (cos 42)/12

• (sin 42)/12

• 12/(sin 42)

Multiple Choice

Find AC

• 12
• 10
• 23
• 14

Multiple Choice

Find m<B

• A
• B
• C
• D

Multiple Choice

Use the Law of Sines to solve for BC

• 33
• 24
• 12
• 29

Multiple Choice

Determine the number of possible triangles that can be drawn with the following dimensions: m<B = 84, a = 18 and b = 19

• 0

• 1

• 2

• 3

Multiple Choice

In ΔABC, m<B = 45, a = 28 and b = 27. Find all possible values for m<A.

• 47 only

• 47 and 133

• 47 and 88

• 55 and 125

Multiple Choice

Find angle Z

• 20.15°

• 71.23°

• 51.06°

• 57.71°

Multiple Choice

Find XZ

• 16.004 meters
• 544.165 meters
• 34.7 meters
• 1204.165 meters