Grade 7 Scale Drawings Exit Flashcard

Front

What is a scale drawing?

Back

A scale drawing is a representation of an object that is proportional to its actual size, using a specific ratio or scale.

Front

What does scale factor mean?

Back

The scale factor is the ratio of the dimensions of the drawing to the dimensions of the actual object.

Front

If the scale factor is 3/4, what does it indicate?

Back

It indicates that the drawing is 3/4 the size of the actual object.

Front

What happens to a figure when the scale factor is greater than 1?

Back

The figure enlarges.

Front

What happens to a figure when the scale factor is less than 1?

Back

The figure reduces in size.

Front

How do you calculate the width of a tent in a scale drawing if the scale is 1 inch : 3 feet and the actual width is 6 feet?

Back

Divide the actual width by the scale factor: 6 feet ÷ 3 feet/inch = 2 inches.

Front

What is the scale factor if a large triangle is reduced to a smaller triangle with dimensions 3 inches and 4 inches?

Back

The scale factor is 3/4 if the smaller triangle's dimensions are 2.25 inches and 3 inches.

Front

What is the relationship between scale drawings and proportionality?

Back

Scale drawings maintain proportional relationships between corresponding dimensions of the objects.

Front

If two rectangles are scale drawings, how can you find the missing measurement?

Back

Use the ratio of the known dimensions to set up a proportion and solve for the missing measurement.

Front

What is an example of a scale factor of 1/2?

Back

If a drawing of a car is 5 inches long, the actual car is 10 inches long.