Similar Shapes

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

• Congruent
• Vertical
• Similar
• Complementary 

Find the length of x

• x = 1
• x = 2
• x = 7
• x = 1/7

Triangle ABC and XYZ are similar.  Use your knowledge of scale factor to find the length of X.

• 20
• 25
• 100
• 40

Find missing side

• 5
• 7
• 9
• 11

All corresponding sides are proportional (same ratio) in similar figures.

• True
• False

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

• x = 9
• x = 28
• x = 7
• x = 63

The triangles are similar. Solve for x.

• 4

• 5

• 6

• 7

Which proportion is true?

If in ▲ DEF and ▲ PQR, ∠ D = ∠ Q, ∠ R = ∠ E then which of the following statements is false ?

A pentagon graphed on a coordinate plane underwent a rotation about the origin, a reflection across the y–axis, a translation down, and a dilation with a scale factor of 3 from its center to produce another pentagon. Which of these statements is true about the original pentagon and the new pentagon?

• They are similar.
• They may or may not be similar, depending on the number of units translated.
• They may or may not be similar, depending on the number of degrees rotated.
• They are not similar.