Scale Drawings/Similar Shapes (MOD30)

Front

What is a scale drawing?

Back

A scale drawing is a representation of an object or space that is proportionally reduced or enlarged to fit a specific size, using a consistent ratio or scale.

Front

What does the scale 1 in = 7 ft mean?

Back

It means that every 1 inch on the drawing represents 7 feet in reality.

Front

If a backyard is 49 ft wide, how wide is it in a drawing with a scale of 1 in = 7 ft?

Back

7 inches.

Front

How do you calculate the height of a building in a scale drawing if the actual height is 300 ft and the scale is 1 inch : 10 ft?

Back

Divide the actual height by the scale factor: 300 ft ÷ 10 ft/in = 30 inches.

Front

What is the formula to find the perimeter of a triangle?

Back

The perimeter of a triangle is the sum of the lengths of all three sides.

Front

If a triangle has sides measuring 10 ft, 12 ft, and 14 ft, what is its perimeter?

Back

36 ft.

Front

What is the purpose of using a scale in drawings?

Back

To accurately represent the size and proportions of an object or space in a manageable format.

Front

What does the scale 3 cm = 4.5 m indicate?

Back

It indicates that every 3 centimeters on the drawing represents 4.5 meters in reality.

Front

If a room measures 5 cm on a blueprint with a scale of 3 cm = 4.5 m, what is the actual length of the room?

Back

7.5 meters.

Front

How do you convert a scale drawing measurement to actual size?

Back

Multiply the measurement on the drawing by the scale factor.