Dilations + Laws of Sines & Cosines

Q3 Exam Review - Dilations + Laws of Sines & Cosines

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Fill in the Blanks

Fill in the Blanks

Multiple Choice

If the scale factor is less than one, the new figure will be

• an enlargement

• a reduction

• a scale factor

• bigger

Multiple Choice

If the scale factor is greater than one, the new figure will be

• an enlargement

• a reduction

• a scale factor

• smaller

Multiple Choice

The point (8, 12) was dilated to become point (2, 3). What was the scale factor?

• ½
• ¼
• 4
• 2

Multiple Choice

(x, y) -> (2x, 2y) 
What is the coefficient 2 mean?

• plot 2 to the right and 2 up
• scale factor is 2 creating a new figure half the size
• scale factor is 2 making a figure twice the 
  original
• I don't understand this question : ( 

Multiple Choice

Dilate Point B by a scale factor of 3:

• (12,0)
• (12,12)
• (4,3)
• (0,12)

Multiple Choice

Choose the correct scale factor:

• 2

• 3

• 1/3

• 1/2

Multiple Choice

Choose the correct scale factor:

• 2

• 3

• 1/3

• 1/2

Multiple Choice

What is the measure of angle A?

• 58 degrees
• 61 degrees
• 78 degrees
• 74 degrees

Multiple Choice

Use the Law of Sines to solve for BC

• 33

• 24

• 12

• 29

Multiple Choice

Use the Law of Sines to solve for BC

• 33

• 24

• 12

• 29

Multiple Choice

Find m<C

• A
• B
• C
• D

Multiple Choice

Find angle Z

• 20.15°

• 71.23°

• 51.06°

• 57.71°

Multiple Choice

Find angle Z

• 20.15°

• 71.23°

• 51.06°

• 57.71°

Multiple Choice

To approximate the length of a marsh, a surveyor walks 425 meters from point A to point B. Then the surveyor turns 65º and walks 300 meters to point C. Approximate the length AC of the marsh.

• 250

• 615

• :)

• Not me