Unit 1 Lessons 7-12

Find missing side

• 5
• 7
• 9
• 11

Pam drew a scale drawing of a game room. She used the scale 1 inch : 2 feet. If the air hockey table is 5 inches in the drawing, how long is the actual air hockey table?

• 10 Feet

• 2.5 Feet

• 5 Feet

• 15 Feet

A building is 360 feet tall. On a scale drawing, 1/4 inch = 10 feet. What is the height of the building in the scale drawing?

• 15 in

• 9 in

• 7 in

• 13 in

The original perimeter of a rectangle is 30cm, if we enlarge it by a scale factor of 4 what is the new perimeter?

• 120

• 480

• 1920

A blueprint was using a scale of 3cm=4.5m. Find the actual length if it is 5cm on the drawing.

• 7.5
• 13.5
• 1.5
• 1.7

If the actual dimensions of the kitchen are 24 ft. by 24 ft., what is the scale of the drawing?

• 1cm : 9ft
• 1cm : 8ft
• 4cm : 1ft
• 1cm : 4ft

If the perimeter of a rectangle was 20in and now it is is 80in, what is the scale factor that was used?

• 4

• 2

• 40

• 20

What is the scale factor for the scale 4 in = 8 feet?

• 1/2

• 4/96

• 4/8

Answer explanation

Scale factors have the same unit of measures which means you have to convert to the same units first.

What is the scale factor for the scale 5cm = 5m

• 1

• 1/100

Answer explanation

Scale factors have the same unit of measures which means you have to convert to the same units first.

_{Line AB corresponds with what line?} 

• XZ
• XY
• YZ
• YX