Exploring Ratios and Proportions

What is a ratio?

• The sum of two numbers

• The difference between two numbers

• The quotient of two numbers

• The product of two numbers

How is a ratio usually expressed?

• As a difference

• As a fraction or with a colon

• As a product

• As a sum

What is the simplest form of the ratio 10 to 4?

• 10 to 2

• 4 to 10

• 2 to 5

• 5 to 2

What must be true about the units when comparing two quantities using a ratio?

• They must be in meters

• One must be larger than the other

• They must be the same

• They must be different

What is the ratio of 0.5 meters to 35 centimeters in simplest form?

• 7 to 1

• 10 to 7

• 1 to 7

• 7 to 10

How do you convert 35 centimeters to meters?

• 0.035 meters

• 0.35 meters

• 35 meters

• 3.5 meters

What is the sum of the measures of the angles in a pentagon?

• 360 degrees

• 180 degrees

• 540 degrees

• 720 degrees

If two complementary angles are in the ratio 2 to 7, what are their measures?

• 10 and 80 degrees

• 40 and 50 degrees

• 30 and 60 degrees

• 20 and 70 degrees

What is a proportion?

• An equation that states two differences are equal

• An equation that states two sums are equal

• An equation that states two products are equal

• An equation that states two ratios are equal

Which of the following is an example of an extended proportion?

• 3:6 = 1:2

• 3/8 = x/16 = y/40

• a:b = c:d

• a/b = c/d