7.G.A.1 Checkpoint Review

Front

What is a scale factor?

Back

A scale factor is a number that scales, or multiplies, some quantity. It is used to determine the ratio of the dimensions of a scaled copy to the original object.

Front

How do you find the corresponding side length in a scaled copy?

Back

To find the corresponding side length in a scaled copy, multiply the original side length by the scale factor.

Front

If the scale factor is 3, what does that mean?

Back

It means that the dimensions of the scaled copy are 3 times larger than the original dimensions.

Front

What is the formula to calculate the actual length from a model using a scale?

Back

Actual Length = Model Length × Scale Factor.

Front

If a model is 1 cm long and the scale is 1 cm = 3.5 ft, what is the actual length?

Back

The actual length is 3.5 ft.

Front

What does it mean if a scale factor is less than 1?

Back

If a scale factor is less than 1, the scaled copy is smaller than the original object.

Front

How do you convert a model measurement to actual measurement using a scale?

Back

Multiply the model measurement by the scale factor to get the actual measurement.

Front

What is the corresponding side length of HJ if AB is the scaled copy?

Back

AB corresponds to HJ in the scaled copy.

Front

If the original length is 20 yards and the scale factor is 4, what is the scaled length?

Back

The scaled length is 80 yards.

Front

What is the relationship between the scale factor and the dimensions of a model?

Back

The scale factor determines how much larger or smaller the model is compared to the actual object.