Changing a Scale — Unit test Answers

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?

Parker is planning to build a playhouse for his sister.The scaled model below gives the reduced measures for width and height.Not drawn to scaleThe yard space is large enough to have a playhouse that has a width of 3.5 meters. If Parker wants to keep the playhouse in proportion to the model, what cross multiplication of the proportion should he use to find the height?

Fiona enlarges a parallelogram that has a perimeter of 17 meters. Not drawn to scaleWhat is the perimeter of the enlarged parallelogram?

The rectangle below has been enlarged by a scale of 3.5. [Not drawn to scale]What is the area of the enlarged rectangle?

Luka was given an enlargement of a wooden block. Which statements about the original figure and its enlargement are true? Select three options.

Consider the original triangle and the scale drawing enlargement. Figures not drawn to scale.What is the scale factor?

The square represents a scale model that was created by using a factor of 4. Which is true of the measures of the sides of the original square?

Yolanda is planning to put a pool in her backyard. The scaled model below gives the reduced measures for diameter and depth. Not drawn to scaleThe yard space is large enough to have a pool that has a diameter of 27 feet. If Yolanda wants to keep the pool in proportion to the model, what will be the depth of the pool?

The perimeter of the original rectangle on the left is 30 meters. The perimeter of the reduced rectangle on the right is 24 meters. Not drawn to scaleWhat is x, the width of the original rectangle on the left? Round to the nearest hundredth if necessary.