Unit Test

Consider the original parallelogram and its reduction. What is the scale factor

1/6

A scale model of a rectangular patio is 6 feet long and 3 feet wide. The actual patio is 15 feet long. What is the area of the actual patio?

112.5 square feet

Consider the original trapezoid and the enlargement. What is the length of side A, in centimeters, on the enlarged trapezoid?

12

Consider the original triangle and the enlargement. What is the length of side A in centimeters?

12

The area of the scale model of a garden is 15 square feet. The scale model is enlarged by a scale factor of 3 to create the actual garden. Which expression finds the area of the actual garden?

15x3 and 2 to the second power 15*3(2)

The dimensions of a rectangular dining room are 18 feet by 16 feet. If a scale factor of mc015-1.jpg is used to make a scale model of the dining room, what is the area of the dining room in the scale model?

18ft

Consider the original parallelogram and the reduction. What is the length of side A in the new parallelogram?

2

Consider the original triangle and its enlargement. What is the scale factor

2

The scale model of a rectangular garden is 1.5 ft by 4 ft. The scale model is enlarged by a scale factor of 7 to create the actual garden. What is the area of the actual garden?

294ft

A room is 12 feet long and 10.5 feet wide. A scale model of the room is 3.5 feet wide. What is the area of the scale model?

36

Consider the original triangle and the scale drawing enlargement. What is the scale factor

4

The diagram represents a reduction of a triangle by using a scale factor of 0.8. What is the height of the reduced triangle?

4.8 inches

The scale model of a rectangular patio will be enlarged by a scale factor of 2.5 to create the actual patio. The actual patio will be 15 feet by 20 feet. Which is the area of the scale model?

48 square feet

The area of the scale model of a playground is 6 square yards. The scale model is enlarged by a scale factor of 3 to create the actual playground. What is the area of the actual playground?

54 square yeards

The rectangle below has been enlarged by a scale of 3.5. What is the area of the enlarged rectangle?

588 square feet.

Aanya made a scale drawing of a picture. The original dimensions of the picture are 8 inches by 12 inches. Which choice shows a possible combination for the dimensions in Aanya's drawing?

6 inches by 9 inches

Brianna went on a trip to the art museum and sketched a scale drawing of a rectangular wall mural. She used a scale factor of 0.2. The sketch was 12 inches wide and 18 inches long. What was the length of the mural?

90 inches

Which rectangle is an enlargement of a 5 by 6 rectangle?

B:10,18

Hiroto reduces a rectangular photograph by 0.5 by scanning it onto his computer. The image on the screen measures 3 inches by 5 inches. Which rectangle represents the original photograph?

C:6,10

The diagram represents an enlargement of a rectangle by a scale factor of 4. What are the dimensions of the enlarged rectangle?

D:18 inches by 8 inches.

A scale drawing of a rectangle is made by using a scale factor of mc020-1.jpg. The original and the scale drawing are shown below. Which method can be used to find the dimensions of the original rectangle?

D:28 4/5 inches and 19 1/5 inches.

Each side of the regular hexagon below has the same measure. If a model of the hexagon is made by using a scale factor of 6, which applies to the model? Check all that apply.

Each side of the model is 15 feet long. The model is proportional to the original hexagon.

Enzo says that he can draw an enlarged rectangle thatis 16 centimeters by 13 centimeters. Which explains whether Enzo is correct?

Enzo is not correct because he did not multiply the length and width by the same factor.

Jordana was shown this diagram of an isosceles trapezoid and its reduction. She was asked to find the perimeter of the reduced trapezoid. Her work is shown below. Where, if any, did Jordana first make a mistake in her work?

Jordana made a mistake when she calculated the length of side B.

Mya was given the following reduction of a rectangle. Mya calculated the scale factor to be mc018-2.jpg. What error, if any, could Mya have made when she calculated the scale factor?

Mya only used the dimensions from the scale drawing of a rectangle.

Basil was shown this enlargement, and he was asked to find the perimeter of the enlarged shape. His work is shown below. Where, if any, did Basil first make a mistake in his work?

Not:Basil did not make any mistakes in his work.

Beth enlarged the triangle below by a scale of 5. She found the area of the enlarged triangle. Her work is shown below. What was bens error

She should have multiplied 1/2(4)(3.5)by 5 to the second power

Miranda enlarged a picture twice as shown below, each time using a scale factor of 3. Which statements apply to the enlargements? Check all that apply.

The area of the second enlargement is 1,944 square inches. The ratio of the area of the first enlargement to the area of the original equals the square of the scale factor.

Anika was shown a reduction of a complex figure. What can Anika conclude about the scale factor and missing measurements? Check all that apply.

The scale factor is 0.25. The length of side A is 8.75 cm.

A picture is photocopied by using a scale of 2. Each side of the photocopy of the picture is

enlarged by a factor of 2.