Similar Triangles

• h=10

• h=2

• h=50

• h=100

Find the scale factor going from the small triangle to the larger triangle

• 3

• 1/3

• 2

• 5

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

• Congruent
• Vertical
• Similar
• Complementary 

Sides in similar figures must be proportional.  

• True
• False 

Are the triangles similar?

• Yes
• No

Are the triangles similar?

• Yes
• No

What does it mean for two shapes to be similar?

• Same shape, but different size.
• Same size and same shape.
• Their angles add up to 180^o.
• They are congruent.

Are the triangles similar?

• Yes
• No

A triangle's angles add up to...

• 90 Degrees
• 180 Degrees
• 360 Degrees
• OVER 9000 Degrees

If two figures are similar their angles are______.

• proportional
• congruent
• supplementary
• complementary