Ratios Proportions Geometric Mean

Find missing side

• 5

• 7

• 9

• 11

Both shapes are rectangles. Determine if they are similar.

• Yes, they are similar

• No, they are not similar

The pair of figures is similar. Find the length of the missing side.

• x = 12

• x = 3

• x = 40

• x = 4

Find the geometric mean if the two extremes are 4 and 12. Put in simplest radical form.

• 3

• 48

Find the length of the missing side

• 5

• 7

• 9

• 11

A scale drawing of a flagpole has a scale of 1 in.= 4 ft. If the drawing of the pole measures 12 inches, how tall is the actual pole?

• 16 feet

• 3 feet

• 48 feet

• 9 feet

An equation stating that two ratios are equal.

• Proportion

• Congruent

• Unit RAte

• Scale FActor

In a proportion the numbers diagonally across from each other are multiplied together.

• Cross Products

• Unit Rate

• Rate

• Scale Drawing

A comparison of two numbers by division.

• Rate

• Unit Rate

• Ratio

• Corresponding Sides

A drawing that shows a real object with accurate sizes except they have all been reduced or enlarged by a certain amount (called the scale).

• Cross Prodcuts

• Corresponding Sides

• Unit Rate

• Scale Drawing