Scale Factor — Unit test Answers

Norma Ann planned a rectangular courtyard, as shown in the scale drawing below.She decides to change the width, the shorter side of the courtyard, from 45 ft to 40 ft. Which expression finds the change in the scale factor?

Josephine was asked to make a one-fiftieth scale model of the new water tower for her town. She constructed the model that is shown below. Not drawn to scaleWhat is the height of the town’s new water tower in feet? Round to the nearest whole number.

Theo used a map that had a ratio of to plan a road trip. He found that the distance on the map from New York City, NY, to Washington, DC, was 14.4 centimeters. How many miles would he have to drive to make that trip?

A scale factor of 5 is used to enlarge a figure as shown below.What is the area of the smaller figure, in square centimeters?

The rectangle below has been reduced by a scale factor. What is the area of the original rectangle?

Josephine was asked to make a one-fiftieth scale model of the new water tower for her town. She constructed the model that is shown below. Not drawn to scaleWhat is the height of the town’s new water tower in feet? Round to the nearest whole number.

Quinn used a scale drawing to build a soccer field near his school. Initially, he wanted the field to be 28 yards long and 17.5 yards wide. He decided to change the length of the field to 36 yards. If the width is to be changed by the same scale factor, what is the new width of the field? Express your answer to the nearest tenth.

A scale factor of 5 is used to enlarge a figure as shown below.What is the area of the smaller figure, in square centimeters?

Kiesha and her classmates wrote proportions for the reduction of a triangle. Which proportions are set up correctly? Select three options.

Kiesha and her classmates wrote proportions for the reduction of a triangle. Which proportions are set up correctly? Select three options.

Which of the following statements are true for using proportions to solve for missing measures? Select three options.

The regular pentagon below is a scale drawing of an original pentagon that was made by using a scale factor of . If each side of the pentagon has the same measure, which applies to the original pentagon? Select three options.

The rectangle below has been reduced by a scale factor. What is the area of the original rectangle?

The scale drawing below shows an enlargement by a scale factor of 2. What is the missing side length in the original trapezoid?

Theo used a map that had a ratio of to plan a road trip. He found that the distance on the map from New York City, NY, to Washington, DC, was 14.4 centimeters. How many miles would he have to drive to make that trip?