Scale Factor

Front

What is the formula for scale factor?

Back

Front

The two rectangles are scale drawings. What is the measurement of x if the scale factor is 1?

Back

20

Front

Is Figure B a scaled copy of Figure A if their dimensions are not proportional?

Back

No

Front

What is the scale factor if the length of the model is 6 cm and the actual length is 18 cm?

Back

3

Front

If two figures are similar, what can we say about their corresponding angles?

Back

They are equal.

Front

If the scale factor is 2, what happens to the area of the figure?

Back

The area is multiplied by 4.

Front

What is the scale factor if a model is 5 cm and the actual object is 15 cm?

Back

3

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, 10 cm.

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 1/2, how does the size of the model compare to the actual object?

Back

The model is half the size of the actual object.