10.4 - 10.5 Quiz Review

The scale factor of two similar figures is 4 : 5. What is the ratio of their perimeters?

• 4 : 5

• 16 : 25

• 64 : 125

• 8 : 10

The playing surfaces of two foosball tables are similar. The ratio of the corresponding side lengths  is 10:7. What is the ratio of the areas? 

• 200: 494
• 100 : 28
• 832 : 48
• 100 : 49

Two hexagons are similar with a scale factor of 4/5. If the area of the larger hexagon is 20, what is the area of the smaller hexagon?

• 10.24

• 12.8

• 16

• 25

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

• 11/6
• 6/11
• 121/36
• 36/121

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

• 11/6
• 6/11
• 121/36
• 36/121

Tags

CCSS.6.G.A.1

What are similar shapes?

• shapes that have the same shape, but not necessarily the same size

• a comparison of the sizes of the parts of the scale drawing to the actual sizes on the original object.

• sides that are in the same position in different plane figures

• sides that have different ratios

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

If the ratio of perimeters of 2 triangles is 3:4, and the area of the smaller triangle is 324, what is the area of the larger triangle?

• 81

• 432

• 576

• 243

The area of triangle A is 54 and triangle B is 150. What is the scale factor of A to B? 

• 9:25
• 27:75
• 3:5
• 25:9

Tags

CCSS.7.G.A.1

Find the area of the triangle.

• 24

• 48

• 19.723

• 23.967

Tags

CCSS.HSG.SRT.D.9

Find the area of the triangle.

• 30

• 15

• 9.64

• 14.7

Tags

CCSS.HSG.SRT.D.9