Geometry Ratio and Proportion

A triangle’s angle measures are in the extended ratio of 2 : 4 : 9. Find the measures of the angles.

• 20^o, 40^o, 90^o

• 24^o, 48^o, 108^o

• 24^o, 32^o, 124^o

• 20^o, 40^o, 100^o

Do the ratios form a proportion?

• Yes, they form a proportion.

• No, they do not form a proportion.

Solve the proportion.

• 10.8

• 7.5

The correct value for y is

• 1⅝

• 1¾

• 1⅞

• 2

A ratio is

• comparing a bunch of numbers

• a comparison between 2 quantities

• an estimation of an amount

• a variable

Solve the proportion.

• k=5

• k=3.3333333

• k=60

• k=90

Solve for x

• x=6

• x =1/6

• x = 7

• x=9

Solve for k

• 165

• 17

• 1/17

• 1/165

What is it called when you set two ratios equal to each other?

• Proportion

• Fraction

• Ratio

• Congruent

Solve the proportion.

• -3

• -1.5

• 2.1

• 9