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 a specific scale, allowing for accurate measurements and comparisons.

Front

What does the scale 1 cm : 9 m mean?

Back

It means that 1 centimeter on the drawing represents 9 meters in reality.

Front

How do you calculate the width of a field in a scale drawing?

Back

To find the width in the drawing, divide the actual width by the scale factor. For example, if the actual width is 54 meters and the scale is 1 cm : 9 m, the width in the drawing is 54 m / 9 m/cm = 6 cm.

Front

What is a scale factor?

Back

A scale factor is a number that describes how much a figure is enlarged or reduced in a scale drawing.

Front

If a polygon is scaled down by a factor of 1/4, what does that mean?

Back

It means that each dimension of the original polygon is multiplied by 1/4 to get the dimensions of the smaller polygon.

Front

How do you convert feet to inches in a scale drawing?

Back

To convert feet to inches, multiply the number of feet by 12, since there are 12 inches in a foot.

Front

What is the height of a building that is 360 feet tall in a scale drawing where 1/4 inch = 10 feet?

Back

To find the height in the drawing, divide the actual height by the scale factor: 360 feet / 10 feet/inch = 36 inches. Then convert to scale: 36 inches = 9 inches in the drawing.

Front

What is the perimeter of a triangle?

Back

The perimeter of a triangle is the total length of all its sides added together.

Front

If a triangle has sides measuring 12, 12, and 12 units, what is its perimeter?

Back

The perimeter is 12 + 12 + 12 = 36 units.

Front

What is the relationship between scale drawings and real-life measurements?

Back

Scale drawings maintain the same proportions as the real-life object, allowing for accurate representation and measurement.