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 original, using a specific ratio to convert real measurements into smaller or larger dimensions.

Front

What does the term 'scale' mean in the context of drawings?

Back

In drawings, 'scale' refers to the ratio of the size of the drawing to the size of the actual object or area it represents.

Front

If a scale is 1 cm : 9 m, how do you convert actual measurements to the drawing?

Back

To convert actual measurements to the drawing, divide the actual measurement by the scale factor. For example, for a width of 54 m, it would be 54 m ÷ 9 m/cm = 6 cm.

Front

How do you find the actual distance if given a scale and a distance on the drawing?

Back

Multiply the distance on the drawing by the scale factor to find the actual distance. For example, if the scale is 1 in = 10 miles and the distance on the map is 27.6 in, the actual distance is 27.6 in × 10 miles/in = 276 miles.

Front

What is the area of a square garden with a side length of 25 feet, using a scale of 2 inches = 5 feet?

Back

First, convert the side length to the drawing: 25 feet × (2 in / 5 ft) = 10 in. The area is then 10 in × 10 in = 100 in².

Front

How do you calculate the distance between two points on a map using a scale?

Back

To calculate the distance, measure the distance between the two points on the map and multiply by the scale factor. For example, if Hatboro and Smithville are 24 cm apart on a map with a scale of 1 cm = 8 km, the actual distance is 24 cm × 8 km/cm = 192 km.

Front

What is the formula for finding the area of a rectangle?

Back

The area of a rectangle is calculated by multiplying its length by its width (Area = Length × Width).

Front

If a drawing has a scale of 5 cm : 2 m, how do you convert 34 m to the drawing?

Back

To convert 34 m to the drawing, use the scale: 34 m × (5 cm / 2 m) = 85 cm.

Front

What is the importance of using a scale in drawings?

Back

Using a scale in drawings allows for accurate representation of large objects or areas in a manageable size, making it easier to visualize and understand spatial relationships.

Front

What is a common mistake when interpreting scale drawings?

Back

A common mistake is forgetting to convert units properly, leading to incorrect measurements or interpretations of the drawing.