Similarity and Scale Drawings

Front

If the scale factor is greater than one, the new figure will be:

Back

an enlargement

Front

What is the value of X if the corresponding sides of similar figures are proportional?

Back

X=2

Front

Scale: 1in.=7ft. The actual width of the backyard is 49 ft, how wide is it in the drawing?

Back

7 in

Front

If two figures are similar, the corresponding sides are ______________.

Back

proportional

Front

What does 'similar figures' mean?

Back

Figures that have the same shape but may have different sizes.

Front

What is a scale drawing?

Back

A drawing that represents an object or space at a specific ratio to its actual size.

Front

How do you find the scale factor between two similar figures?

Back

Divide the length of a side of the larger figure by the length of the corresponding side of the smaller figure.

Front

If a figure is reduced by a scale factor of 1/2, what happens to its area?

Back

The area is reduced to 1/4 of the original area.

Front

What is the relationship between the perimeters of two similar figures?

Back

The ratio of their perimeters is equal to the scale factor.

Front

If a triangle has sides of 3 cm, 4 cm, and 5 cm, what are the sides of a similar triangle with a scale factor of 2?

Back

6 cm, 8 cm, and 10 cm.