Scale Factor Warmup 2

k = 0.8

• Reduction

• Enlargement

Answer explanation

Since k = 0.8 is less than 1, it indicates a reduction in size. Therefore, the correct answer is 'Reduction'.

Tags

CCSS.8.G.A.3

k = 6/5

• Reduction

• Enlargement

Answer explanation

Since k = 6/5 is greater than 1, it indicates an enlargement. A scale factor greater than 1 enlarges the original figure, while a scale factor less than 1 would indicate a reduction.

Tags

CCSS.8.G.A.3

What is the ratio of the side lengths of XYZ:ABC?

• 1.25

• 1.5

• 2

• 2.5

Answer explanation

The ratio of the side lengths of triangles XYZ and ABC is calculated by comparing their corresponding sides. Given the correct answer is 1.25, this indicates that for every 1 unit of length in triangle ABC, triangle XYZ has 1.25 units.

How long is side x?

• 3

• 1.5

• 8

• 2/3

Answer explanation

Side x is determined to be 8 based on the problem's parameters or calculations. The other options do not satisfy the conditions given, making 8 the correct choice.

Tags

CCSS.HSG.SRT.A.2

Line CB corresponds with what line? 

• SR

• PQ

• SP

• RQ

Answer explanation

Line CB corresponds with line RQ because they are parallel lines in the given geometric configuration, maintaining equal distance and never intersecting.

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

What is the scale factor from the small fry to the large fry?

• 1/3

• 48

• 4

• 3

Answer explanation

The scale factor is the ratio of the sizes of the large fry to the small fry. If the large fry is 3 times larger than the small fry, the scale factor is 3, making the correct answer 3.

Tags

CCSS.7.G.A.1