Parts of Similar Triangles and Parallel Lines

Solve for x.

Solve for x.

Solve for r:

• 40

• 60

• 66

• 10

• a

• b

• c

• d

• m∠1 = m∠6

• m∠2 = m∠6

• m∠1 + m∠6 = 180°

• x = 90°

• x = 120°

• A
• B
• C
• D

Is ABC ~ DEC? Explain.

• No; They are both right triangles but all of their sides are different, so they are not similar.

• Yes; They share two sides, so they are similar.

• Yes; They are both right triangles and they share the common angle C, so they are similar.

• There is not enough information to tell whether they are similar.

• Not Similar
• Similar. ∆ABC~∆EDF
• Similar. ∆ACB~∆EDF
• Similar. ∆ABC~∆EFD

Solve for x.

Solve for x.