proportions

Tell whether the two figures are similar. Explain your reasoning. (Hint: are they proportional?)

• 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

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

Are the following similar? Why or why not?

• Yes
• No, the corresponding angles are not equal.
• No, the ratios of the corresponding sides are not equal.

Tags

CCSS.HSG.SRT.A.2

Are these triangles similar?

• Yes
• No

Tags

CCSS.HSG.SRT.A.2

Two objects that are the same shape but not the same size are _______.

• Congruent
• Vertical
• Similar
• Complementary 

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

What is a Dilation?

• To reflect something

• To enlarge of reduce something

• To make something different

• To shift something

Tags

CCSS.8.G.A.3

The ________ is the ratio of a length of an image to the corresponding length on the original figure.

• scale factor

• center of dilation

• reduction

• enlargement

Tags

CCSS.7.G.A.1

A triangle has vertices with coordinates A(2,0), B(3, -1) and C(-2,-5). If the triangle is dilated by a scale factor of 3, what are the coordinates of the vertices of the image?

• A(5,3), B(6,2), C(1,-2)

• A(6,0), B(9,-3), C(-6,-15)

• A(2/3,0), B(1,-1/3), C(-2/3,-5/3)

• A(-1,-3), B(0,-4), C(-5,-8)

Tags

CCSS.8.G.A.3

What does similar mean?

• same shape and same size
• same size
• sames shape
• neither

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

• Yes

• No

Tags

CCSS.7.RP.A.2A

• Yes

• No