TEKS.MATH.8.3A

If your scale factor is less than 1, your new shape will be ______.

• Bigger
• Smaller
• The same size
• Rotated

Tags

TEKS.MATH.8.3A

Are these two figures similar?

• Yes
• No

Tags

TEKS.MATH.8.3A

Tell whether the two figures are similar. Explain your reasoning.

• Yes, similar because they are the same shape and side lengths are proportional.
• No, not similar because they are the same shape, but side lengths are not proportional.
• Yes, same shape
• No, different sizes

Tags

TEKS.MATH.8.3A

TEKS.MATH.7.5A

Find the ratio (blue to red) of the perimeter.

• 4/7
• 7/4
• 49/16
• 16/49

Tags

TEKS.MATH.8.3A

Are the triangles similar?

• Yes
• No

Tags

TEKS.MATH.8.3A

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

• a reduction
• an enlargement
• a scale
• not proportional

Tags

TEKS.MATH.8.3A

TEKS.MATH.7.5A

Are the two figures similar

• yes

• no

Tags

TEKS.MATH.8.3A

If a figure is dilated by a scale factor of 1/3, what happens to perimeter?

• 1/3 of the size

• 1/9 the size

• 2/3 the size

• not here

• 2/9

Tags

TEKS.MATH.8.3A

What is the scale factor?

• 1.25

• 1.5

• 2

• 2.5

Tags

TEKS.MATH.8.3A

A ~ B. What is the scale factor of the dilation of A to B?

• $\frac{4}{3}$

• $\frac{3}{4}$

• 3

• 4

Tags

TEKS.MATH.8.3A