Scale Drawings

Front

What is a scale drawing?

Back

A scale drawing is a representation of an object or space that maintains the proportions of the original while being resized to a different scale.

Tags

CCSS.7.G.A.1

Front

How do you determine the scale of a drawing?

Back

The scale of a drawing can be determined by comparing the measurements of the drawing to the actual measurements of the object it represents.

Tags

CCSS.7.G.A.1

Front

If a scale drawing uses a scale of 1 cm = 3 meters, how would you convert a real-life measurement to the drawing?

Back

To convert a real-life measurement to the drawing, divide the real-life measurement by the scale factor. For example, for 18 meters, you would calculate 18 meters / 3 meters/cm = 6 cm.

Tags

CCSS.7.G.A.1

Front

What is the formula to find the actual size from a scale model?

Back

The actual size can be found by multiplying the size of the model by the scale factor.

Tags

CCSS.7.G.A.1

Front

In a scale of 1:48, what does the '48' represent?

Back

The '48' represents that 1 unit on the model is equal to 48 units in real life.

Tags

CCSS.7.G.A.1

Front

How do you convert inches to feet in a scale drawing?

Back

To convert inches to feet, divide the number of inches by 12, since there are 12 inches in a foot.

Tags

CCSS.7.G.A.1

Front

What is the actual height of a train if a scale model is 102 mm at a scale of 1:48?

Back

The actual height of the train is 102 mm * 48 = 4,896 mm.

Tags

CCSS.7.G.A.1

Front

If a drawing is made at a scale of 1 inch to 6 feet, how many feet does a 4-inch wide drawing represent?

Back

A 4-inch wide drawing represents 4 inches * 6 feet/inch = 24 feet.

Tags

CCSS.7.G.A.1

Front

What does it mean if a scale is expressed as 1 inch to 5 miles?

Back

It means that 1 inch on the drawing represents 5 miles in real life.

Tags

CCSS.7.G.A.1

Front

How do you calculate the actual distance represented by a drawing that is 2 inches long at a scale of 1 inch to 5 miles?

Back

Multiply the length in inches by the scale factor: 2 inches * 5 miles/inch = 10 miles.

Tags

CCSS.7.RP.A.2C