Similar Figures and Scale Factors

Front

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

Back

True

Front

What is the scale factor from ΔDEF to ΔABC if ΔDEF is half the size of ΔABC?

Back

1/2

Front

If the scale is 1cm = 8km, and Hatboro and Smithville are 24cm apart on the map, what is the actual distance between the two cities?

Back

192 km

Front

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

Back

Similar

Front

A scale drawing that measures 8 units wide and an original that measures 4 units wide has a scale factor of...?

Back

2

Front

What does it mean for two figures to be similar?

Back

They have the same shape but different sizes.

Front

If the scale factor is 3, how does the area of the larger figure compare to the smaller figure?

Back

The area of the larger figure is 9 times greater than the smaller figure.

Front

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

Back

6, 8, and 10.

Front

What is the scale factor if a rectangle measuring 10cm by 5cm is reduced to 5cm by 2.5cm?

Back

1/2

Front

If two similar figures have a scale factor of 4, what is the ratio of their perimeters?

Back

4:1