Congruent and similar

Which shape is not congruent to the other three?

• A

• B

• C

• D

Which one of the four hexagons is not similar to the other three?

• A

• B

• C

• D

Which one of the four pentagons is not similar to the other three?

• A

• B

• C

• D

Which one of the four trapezoids is not similar to the other three?

• A

• B

• C

• D

Triangles ABC and PQR are similar. What is the length of PQ?

• 9

• 10,5

• 13

• 15

Triangles ABC and XYZ are similar. What is the length of XZ?

• 14

• 20

• 22

• 24

These two quadrilaterals are similar.

What is the value of x (the length of B'C') ?

• 
  

  $2\ \frac{2}{3}$

• 5

• 6

• $6\ \frac{2}{3}$

In the diagram: AB is parallel to ED. the points B, C and E lie on a straight line, and the points A, C and D also lie on a straight line. What is the value of e (the length of CD) ?

• 14.5

• 16.5

• 17.5

• 18

The two trapezoids are similar. What is the value of x?

• 2

• 2.5

• 3

• 3.125

BC is parallel to DE. What is the length of BC?

• 3.65

• 4.9

• 5.5

• 5.9