Scale Drawing/Similar Figures

Front

What is a scale drawing?

Back

A proportional drawing of an object that represents its dimensions in a reduced or enlarged form.

Front

What is the scale in a drawing?

Back

A ratio between the measurements of the drawing and the actual object.

Front

If a blueprint of a house is 6 inches long and the actual house is 18 feet long, what is the scale?

Back

1 inch: 3 feet.

Front

What does it mean for figures to be similar?

Back

Their shapes are the same, and their corresponding sides are proportional.

Front

If a model of a baseball stadium is 2 ft wide and the actual stadium is 200 yd wide, what is the scale?

Back

1 foot = 100 yards.

Front

What is the constant of proportionality?

Back

The ratio that relates the dimensions of similar figures.

Front

How do you determine if two figures are similar?

Back

Check if their corresponding angles are equal and their corresponding sides are proportional.

Front

What is an example of a scale drawing?

Back

A map that represents a large area in a smaller size, maintaining proportional distances.

Front

What is the formula to find the scale factor?

Back

Scale Factor = Length in Drawing / Length in Reality.

Front

What is the difference between a scale drawing and a model?

Back

A scale drawing is a 2D representation, while a model is a 3D representation.