Similar Figures & Scale Drawings

Front

What is the scale of a drawing?

Back

A scale of a drawing is a ratio that compares the dimensions of the drawing to the actual dimensions of the object.

Front

If a scale drawing has a scale of 5 cm : 2 m, how do you convert real-life measurements to the drawing?

Back

To convert real-life measurements to the drawing, use the ratio to find the equivalent length in the drawing by multiplying the real-life measurement by the scale factor.

Front

What are corresponding sides in similar figures?

Back

Corresponding sides are the sides of similar figures that are in the same relative position.

Front

What does it mean for angles in similar figures?

Back

All angles in similar figures are congruent, meaning they have the same measure.

Front

How do you find a missing side in similar figures?

Back

To find a missing side, set up a proportion using the lengths of corresponding sides.

Front

What is the relationship between scale and actual size?

Back

The scale indicates how much smaller or larger the drawing is compared to the actual size.

Front

If a model of a house is built at a scale of 5 in : 25 ft, how do you find the actual size of a feature?

Back

Multiply the size of the feature in the model by the scale factor to find the actual size.

Front

What is a scale drawing?

Back

A scale drawing is a representation of an object that is proportional to its actual size.

Front

What is the formula to convert from drawing size to actual size using scale?

Back

Actual Size = Drawing Size × (Actual Size of Object / Size of Drawing) or Actual Size = Drawing Size × Scale Factor.

Front

If a parking lot is 34 meters wide in real life, how wide is it in a drawing with a scale of 5 cm : 2 m?

Back

The width in the drawing is 85 cm.