Topic 7 Extra Credit

Triangle PQR was dilated to form Triangle DEF. What scale factor was used to dilate Triangle PQR?

Tags

CCSS.8.G.A.3

• F

• G

• H

• J

Tags

CCSS.8.G.A.3

Rectangle ABCD has a length of 6 and a height of 5. It is dilated by a scale factor of 3. What are the dimensions of Rectangle A'B'C'D'?

• 2 and 5/3

• 6 and 5

• 18 and 15

• 9 and 8

Tags

CCSS.8.G.A.3

Parallelogram A was dilated to form Parallelogram B. What scale factor was used to perform that dilaton?

• 3

Tags

CCSS.8.G.A.3

What will the new coordinates of D(4,6) be after a dilation centered at the origin with a scale factor of 1/2

• (2,6)

• (4,3)

• (-2,-3)

• (2,3)

Tags

CCSS.8.G.A.3

What would the coordinates of F' be after dilating Triangle DFE with a scale factor of 2, then reflecting it over the y-axis?

• (-4,10)

• (4,-10)

• (-4,-10)

• (4,10)

Tags

CCSS.8.G.A.3

Similar triangles have sides that are ___________, while congruent triangles have sides that are ___________.

• equal, proportional

• proportional, equal

• equal, equal

• proportional, proportional

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

Are these two triangles similar?

• Yes because they have 1 pair of equal angles.

• Yes because they have 2 pairs of equal angles.

• No because all three sets of angles are not equal.

• There is no way to tell from the information given.

Tags

CCSS.HSG.SRT.A.2

What is the length of segment BE?

• 3

• 3.6

• 4.5

• 12

Tags

CCSS.HSG.SRT.B.4

Segment DE bisects segments AB and AC. If segment BC = 24, what is the length of segment DE?

• 12

• 24

• 36

• 48

Tags

CCSS.HSG.SRT.B.4