Unit 5 Review

Figure ABCD is similar to figure WXYZ. Which proportion must be true for these figures?

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Micah made a scale model of the Empire State Building. The building has an actual height of 381 meters. Micah's model used a scale in which 1 cm represents 50 meters. What is the height in centimeters of Micah's model?

• 3.2

• 19.05

• 36.83

• 7.62

Triangle JKL is similar to triangle MNO. What is the perimeter of triangle MNO?

• 9 in

• 27 in

• 18 in

• 11 in

The triangles shown below are similar. Which line segment corresponds to RS?

• RT

• TS

• OS

• UT

Trapezoid FGHI is similar to trapezoid KLMN. What is the length of GH?

• 8.5 in

• 7 in

• 6.75 in

• 5.5 in

The rectangle below is dilated by a scale factor of 3.6 to create a new rectangle. Which of the following could be the dimensions of the new rectangle?

• 14.4 cm X 5.4 cm

• 5.4 cm X 7.2 cm

• 7.2 cm X 1.8 cm

• 14.4 cm X 7.2 cm

Two boxes of tissues are similar in shape and size. The larger tissue box is dilated by a scale factor of 0.5 to create the smaller tissue box. What are the measurements of the smaller tissue box?

• y = 6 in, z = 3.5 in

• x = 3.25 in, y= 6 in

• x = 3.5 in, y = 6 in

• y = 6 in, z = 2.75 in

Mr. Bradshaw used similar triangles to make a design. Which statement about the triangle sin 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.

Ana drew a map of the Panama Canal. In the scale Ana used for the map, 4 centimeters represents 20 kilometers. The actual length of the Panama Canal is 82 kilometers. What is the length in centimeters of the Panama Canal on Ana's map?

• 410 cm

• 15.5 cm

• 16.4 cm

• 162 cm

In the scale used on a blueprint, 1/4 inch represents 2 feet. On the blueprint what is the length of a room with an actual length of 20 feet?

• 10 in.

• 5 in.

• 1/2 in

• 2 1/2 in