Scale Drawing 3

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, using a specific scale to indicate the relationship between the drawing and the actual size.

Front

What does the scale '1 inch = 5 miles' mean?

Back

It means that every 1 inch on the map represents 5 actual miles in real life.

Front

If a map has a scale of 1 inch = 5 miles, what is the actual distance for 3 inches on the map?

Back

15 miles (3 inches x 5 miles/inch = 15 miles).

Front

How do you calculate the actual area from a scale drawing?

Back

To calculate the actual area, convert the dimensions from the scale drawing to actual measurements using the scale, then use the formula for area (length x width).

Front

What is the formula for the area of a rectangle?

Back

Area = length x width.

Front

If a scale drawing has a scale of 1/3 cm = 2 m, what is the actual length for 1 cm on the drawing?

Back

6 m (1 cm x (2 m / (1/3 cm)) = 6 m).

Front

What is perimeter?

Back

Perimeter is the total distance around the outside of a shape, calculated by adding the lengths of all sides.

Front

How do you find the perimeter of a rectangle?

Back

Perimeter = 2(length + width).

Front

If a blueprint has a scale of 3 cm = 4.5 m, what is the actual length for 5 cm on the drawing?

Back

7.5 m (5 cm x (4.5 m / 3 cm) = 7.5 m).

Front

What is the relationship between scale and actual size?

Back

The scale indicates how much the drawing is reduced or enlarged compared to the actual size, allowing for accurate measurements.