Perimeter and Area Similarity

These figures are similar. Find the value of "z".

• 16

• 4

• 12

• 36

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

If the perimeter of the purple figure is 144 cm, what is the perimeter of the green figure.

• 72 cm

• 36 cm

• 144 cm

• 30 cm

If the scale factor of 2 similar figures is 3:8, what is the ratio of their PERIMETERS?

• 8:3

• 3:8

• 9:64

• 64:9

If the scale factor of 2 similar figures is 3:8, what is the ratio of their AREAS?

• 8:3

• 3:8

• 9:64

• 64:9

Tags

CCSS.7.G.A.1

If the ratio of 2 round dinner plates is 1:3, what is the ratio of their AREAS?

• 1:3

• 3:1

• 1:9

• 9:1

Tags

CCSS.7.G.A.1

The scale factor of 2 pentagons is 3:5. If the AREA of the larger pentagon is 100, what is the AREA of the smaller pentagon?

• 36

• 60

• 3

• 5

Tags

CCSS.7.G.A.1

The scale factor of 2 pentagons is 3:5. If the PERIMETER of the larger pentagon is 100, what is the PERIMETER of the smaller pentagon?

• 36

• 60

• 3

• 5

Tags

CCSS.7.G.A.1

Two hexagons have a scale factor of 3/8. If the AREA of the smaller hexagon is 72 , what is the AREA of the larger hexagon?

• 512

• 192

• 9

• 36

Tags

CCSS.7.G.A.1

Two hexagons have a scale factor of 3/8. If the PERIMETER of the smaller hexagon is 72 , what is the PERIMETER of the larger hexagon?

• 512

• 192

• 9

• 36

Tags

CCSS.7.G.A.1

Find x

• 21

• 27/7

• 13

• 18

Tags

CCSS.7.RP.A.2C