Scale Drawings and Area Answers

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 Beth’s error?

A scale model of a rectangular building lot measures 7 feet by 5 feet. If the actual house will be built using a scale factor of 12, what is the area of the actual building lot?

A model of a rectangular patio at a landscaping business will be enlarged by a scale factor of 2 when it is installed in a customer’s back yard. The area of the new enlarged patio will be 160 square feet. Which is the area of the landscaper’s model?

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?

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

The trapezoid below has been enlarged by a scale of 1.5. What is the area of the enlarged trapezoid?

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

A rectangle is reduced by a scale factor of .Which choices show the ratio of the area of the smaller rectangle to the area of the larger rectangle? Select three options.

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?

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?