Scale Drawings

Front

What is a scale drawing?

Back

A scale drawing is a representation of an object or area that is proportionally reduced or enlarged to fit on paper, maintaining the same ratios as the original.

Front

What does the scale 1 cm = 5 km mean?

Back

It means that every 1 centimeter on the map represents 5 kilometers in reality.

Front

If two cities are 3 cm apart on a map with a scale of 1 cm = 5 km, what is the actual distance?

Back

15 km (3 cm x 5 km/cm = 15 km).

Front

How do you calculate the perimeter of a shape in a scale drawing?

Back

To find the perimeter, add the lengths of all sides of the shape in the scale drawing, then convert to actual measurements using the scale.

Front

What is a scale factor?

Back

A scale factor is a number that scales, or multiplies, a quantity. It indicates how much larger or smaller a drawing is compared to the actual object.

Front

If a triangle's scale factor is 1/2, what does that mean?

Back

It means the triangle in the drawing is half the size of the original triangle.

Front

How do you convert real-life measurements to a scale drawing?

Back

Divide the real-life measurement by the scale factor to find the corresponding measurement in the scale drawing.

Front

If Jamie's apartment building is 300 ft tall and the scale is 1 inch : 10 ft, how tall is it in the drawing?

Back

30 inches (300 ft ÷ 10 ft/inch = 30 inches).

Front

What is the formula to find the actual distance using a scale?

Back

Actual Distance = Distance on Map x Scale Factor.

Front

What is the importance of scale in drawings?

Back

Scale allows for accurate representation of large objects or areas on a smaller medium, making it easier to visualize and understand.