Congruence, Similarity, and Scale Factor

Which statement is the congruence statement for the 2 triangles?

Calculate the value of the scale factor between the 2 triangles

• 2.5

• 3

• 3.5

• 4

What is the scale factor from ABCD to MNOP?

• 2/3

• 3/2

• 2

• 3

If the triangles are similar, find x

• 90

• 60

• 30

• 15

What is the scale factor from ABCD to MNOP?

• 2/3

• 3/2

• 2

• 3

Which rule would dilate shows a scale factor of 4

• (x, y) → (y, x)

• (x, y) → (x + 4, y + 4)

• (x, y) → (x, -y)

• (x, y) → (4x, 4y)

What is the scale factor of the surface area of these cones?

• 3:5

• 9:25

• 27:125

• 15:60

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

• an enlargement

• a reduction

• a scale factor

• bigger

What does similar mean?

• When two figures have the same Rate of change

• Same size

• Same shape

• When two shapes have the same Scale FactorΔ

When I have the scale factor, how do I use it to find the area?

• Square root it and the multiply by area given

• Square it and the multiply by area given

• Double it and the multiply by area given

• Multiply it by area given