Similar and Congruent Figures

Flipping a figures is a ...

• Rotation

• Reflection

• Dilation

• Translation

Congruent figures are ...

• The same size

• The same shape

• The same size and the same shape

• The same shape, but not always the same size.

Identify the corresponding parts

• Side JL and Side ST

• Angle L and Angle S

• Side JK and Side UT

• All of the above

4m

5m

3m

4.5m

• 4m

• 5m

• 3m

• 4.5m

4m 5m 3m 4.5m

• 4m

• 5m

• 3m

• 4.5m

What is the scale factor going from the larger triangle to the smaller triangle?

• 1/3

• 1/2

• 1

• 1 1/2

• 2

The pair of figures is similar. Find the missing side.

• x = 12

• x = 3

• x = 40

• x = 4

Shapes that are the same shape and the same size are ________.

• similar

• unique

• congruent

• corresponding

Select ALL that apply.

In order for images to be similar to each other,

• all angles must stay congruent

• the new image must get bigger

• you add the same number to all side lengths

• all side lengths must increase or decrease by the same scale factor

Rectangle A measures 15 cm by 5 cm. Rectangle B is a scaled copy of Rectangle A. Select all of the measurement pairs that could be the dimensions of Rectangle B.

• 3 cm by 1 cm

• 7.5 cm by 2.5 cm

• 20 cm by 10 cm

• 45 cm by 15 cm