Scale Drawings

Front

What is a scale drawing?

Back

A scale drawing is a representation of an object or area that maintains the proportions of the actual dimensions, using a specific ratio or scale.

Front

How do you calculate actual dimensions from a scale drawing?

Back

To find actual dimensions, multiply the measurements on the drawing by the scale factor.

Front

If a scale drawing has a scale of 1 cm to 8 meters, what does this mean?

Back

This means that every 1 cm on the drawing represents 8 meters in reality.

Front

What is the formula for calculating the perimeter of a rectangle?

Back

Perimeter = 2(length + width).

Front

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

Back

Width in drawing = 49 ft ÷ 7 ft/in = 7 in.

Front

What is the perimeter of a rectangular plot measuring 3 cm by 5 cm on a scale of 1 cm to 30 meters?

Back

Perimeter = 2(3 cm + 5 cm) = 16 cm; Actual perimeter = 16 cm × 30 m/cm = 480 m.

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.

Front

If two cities are 3 inches apart on a map with a scale of 1 inch to 5 miles, how far apart are they in reality?

Back

Distance apart = 3 inches × 5 miles/inch = 15 miles.

Front

What is the scale if the actual dimensions of a kitchen are 24 ft by 24 ft and the drawing is 3 cm by 3 cm?

Back

Scale = 1 cm : 8 ft.

Front

What does it mean if a scale drawing is not to scale?

Back

It means that the proportions of the drawing do not accurately represent the actual dimensions.