Find Area and Perimeter of Similar Shapes

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

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 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

If two figures are similar, the corresponding sides are ______________.

• equal

• congruent

• proportional

• none of these

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

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

• 4/7

• 7/4

• 49/16

• 16/49

If the linear scale factor is 4, what is the area scale factor?

• 2

• 8

• 16

• 25

Tags

CCSS.7.G.A.1

Two shapes are ___________ if their corresponding sides are proportional and their corresponding angles are congruent.

• Similar

• Ratio

• Scale factor

• Not similar

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

Two similar triangles have a scale factor of ⅔. The area of the larger triangle is 12 cm².

What is the area of the smaller triangle?

• 4 cm²

• 8 cm²

• 9 cm²

• 12 cm²

• 24 cm²