Similar Figures and Scale Factors

Front

Two objects that are the same shape but not the same size are _______.

Back

Similar

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

Front

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

Back

an enlargement

Tags

CCSS.8.G.A.3

Front

Scale is 1cm = 8km. Hatboro and Smithville are 24cm apart on the map, what is the actual distance between the 2 cities?

Back

192 km

Tags

CCSS.7.G.A.1

Front

All angles in similar figures are congruent. True or False?

Back

True

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

Front

Are the two figures similar? Explain your reasoning. (Hint: are they proportional?)

Back

No, not similar because they are the same shape, but side lengths are not proportional.

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

Front

What is a scale factor?

Back

A scale factor is a number that scales, or multiplies, some quantity.

Tags

CCSS.7.G.A.1

Front

What does it mean for two figures to be congruent?

Back

Two figures are congruent if they are the same shape and size.

Tags

CCSS.8.G.A.2

Front

What is the relationship between the side lengths of similar figures?

Back

The side lengths of similar figures are proportional.

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

Front

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

Back

The figure is reduced to half its original size.

Tags

CCSS.8.G.A.3

Front

What is the scale factor if a triangle with sides 3 cm, 4 cm, and 5 cm is enlarged to 6 cm, 8 cm, and 10 cm?

Back

The scale factor is 2.

Tags

CCSS.7.G.A.1