Similar Figures & Scale Factor

The distance between two cities on a map is 4.125 inches.  Find the actual distance if the scale on the map is 2 inches = 40 miles.

• 165 miles

• 50 miles

• 82.5 miles

• 41.25 miles

Mrs. Ashley used similar triangles to make a design.  Which statement about the triangles in the design must be true?

• They are the same size and shape.

• They are the same size but different shapes.

• They have corresponding angles that are congruent.

• They have corresponding sides that are congruent.

Pentagon JKLMN is similar to pentagon VWXYZ.
What is the measurement of angle X?

• 30 degrees

• 60 degrees

• 150 degrees

• 120 degrees

An equation stating that two ratios are equal.

• Proportion

• Congruent

• Unit RAte

• Scale FActor

Line CB corresponds with what line? 

• SR

• PQ

• SP

• RQ

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

• x = 12

• x = 3

• x = 40

• x = 4

Find the scale factor of the enlargement from C to A

• 2

• 1/2

• 3

• 1/3

Find the scale factor of the enlargement from X to Y

• 1/2

• 3

• 2

• 4

The two rectangles are scale drawings. What is the measurement of x?

• 21

• 1.25

• 20

• 4

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

• x = 12

• x = 3

• x = 40

• x = 4