Unit 2 Mid-unit quiz (similarity)

True or False: "If two figures are similar, then they are congruent"

• true

• false

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

True or false: "If two figures are congruent, then they are similar"

• true

• false

Tags

CCSS.8.G.A.2

Explain the difference between "congruent" and "similar":

Tags

CCSS.8.G.A.2

Priya says, “These polygons are similar because their side lengths are all the same.” Clare says, “These polygons are not similar because the angles are different.” Do you agree with either Priya or Clare? EXPLAIN your reasoning:

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

The rectangles are dilations of each other because they have a common scale factor

• true

• false

Tags

CCSS.8.G.A.3

What is the scale factor?

• 1.5

• 2

• 3

• The is no single (common) scale factor... the rectangles are not proportionate

Tags

CCSS.7.G.A.1

Are the two rectangles "similar" ?

• Yes, because each side length in one figure is multiplied by the SAME scale factor to get the corresponding side length in the other figure.

• No, because each side length in one figure cannot be multiplied by the SAME scale factor to get the corresponding side length in the other figure.

Tags

CCSS.HSG.SRT.A.2

CCSS.8.G.A.4

Select all that are true. When two polygons are similar:

• Every angle and side in one polygon has a corresponding part in the other polygon.

• All pairs of corresponding angles have the same measure.

• Corresponding sides are related by a single scale factor.

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

These two triangles are similar. Find side length "a". Note: the two figures are not drawn to scale.

• a = 3

• a = 15

• a = 7

• a = none of the above

Tags

CCSS.HSG.SRT.A.2

These two triangles are similar. Find side length "b". Note: the two figures are not drawn to scale.

• b = 3

• b = 7

• b = 15

• b = none of the above

Tags

CCSS.HSG.SRT.A.2