Similarity

All angles in similar figures are congruent.  

• True
• False

What does congruent mean?

• Same shape, different size
• Not same shape, or size
• Same size, same shape

What are matching sides of similar figures?

• Corresponding Sides
• Corresponding Angles
• Scale Factor

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

• a reduction
• an enlargement
• a scale
• not proportional

What is corresponding congruent angles and proportional sides?

• Similar Figures
• Scale Factor
• Congruent Shapes

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

• x = 12
• x = 3
• x = 40
• x = 4

A tree is 12 feet tall and casts a shadow 9 feet long. A building nearby casts a shadow that measures 24 feet. How tall is the building? (Draw a picture, set up a proportion)

• 24 feet
• 21 feet
• 27 feet
• 32 feet

The scale of a mug in a picture is ½ in.=3 cm. Find the actual length of the 4 in. coffee mug.

• 24 cm
• 6 cm
• 30 cm
• 13 cm

A scale drawing of a flagpole has a scale of 1 in.= 4 ft. If the drawing of the pole measures 12 inches, how tall is the actual pole?

• 16 feet
• 3 feet
• 48 feet
• 9 feet

Scale is 1cm = 8km. Hatboro and Smithville are 24cm apart on the map, what is the actual distance between the 2 cities?

• 87 km
• 216 km 
• 33 km
• 192 km