Ratio, Proportions, Similar Polygons

Select two more ways to write the ratio of x to y.

• x:y

•  $\frac{x}{y}$  

•  $\frac{y}{x}$  

• y:x

Name the cross products of the proportion: $\frac{m}{a}=\frac{t}{h}$   

• mt = ah

• th - ma

• mh = at

• am = ht

Given that 10a = 15b, find the ratio of a:b in simplest form.

• 3:2

• 2:3

• 150:1

• 1:150

Solve the proportion.

• 10
• -2
• 4
• -7

What is the similarity statement for the triangle pair?

• ΔXYZ~ΔNEW

• ΔXZY~ΔNWE

• ΔZYX~ΔENW

• ΔYZX~ΔNWE

Tags

CCSS.7.G.A.2

CCSS.7.G.B.5

Two objects that have the same shape but not the same size are called _______.

• Congruent

• Vertical

• Similar

• Complementary

A picture of a school’s mascot is 18 in. wide and 24 in. long. It is enlarged proportionally to banner size. If the width is enlarged to 54 in., what is the length of the banner? 

• 72 in
• 60 in
• 62 in
• 80 in

Tags

CCSS.7.G.A.1

CCSS.7.RP.A.2

In similar Polygons, corresponding sides are ___ and corresponding angles are ___. (Fill in the blanks)

• congruent, proportional 
• proportional, congruent 
• congruent, congruent
• proportional, proportional

Tags

CCSS.HSG.SRT.A.2

CCSS.HSG.SRT.B.5

The ratio of the side lengths of a triangle is 2:4:8, and its perimeter is 35 cm. Find the length of the longest side.

• 12.86 cm

• 2.5 cm

• 5 cm

• 20 cm

Tags

CCSS.7.EE.B.3

CCSS.7.NS.A.3

CCSS.7.RP.A.2

CCSS.7.RP.A.3

Solve the proportion: $\frac{5x}{24}=\frac{10}{3x}$   

• x = 2

• x = 4

• x = 6

• x = 8