Scale Drawings and Word Problems in Geometry

What is the area of the actual dining room compared to the blueprint?

• 1,600 times different

• 1,600 times the same

• 1,600 times smaller

• 1,600 times larger

What is the length of the dining room on the blueprint?

• 5 inches

• 4 inches

• 3 inches

• 2 inches

If the dimensions of a square are increased by a factor of 2, by what factor does the area increase?

• 5

• 4

• 3

• 2

If the dimensions of a square are increased by a factor of 3, by what factor does the area increase?

• 6

• 7

• 8

• 9

What is the scale factor of the lengths if the area increases by 1,600 times?

• 30

• 20

• 40

• 50

How did Sal figure out the scale factor of 40?

• By using the clue of 16

• By guessing

• By measuring the blueprint

• By using a calculator

What is the length of the actual dining room in inches after applying the scale factor?

• 130 inches

• 100 inches

• 120 inches

• 110 inches

What is the length of the actual dining room in feet?

• 10 feet

• 11 feet

• 9 feet

• 8 feet

How many inches are there in one foot?

• 12 inches

• 11 inches

• 10 inches

• 13 inches

What is the final step to find the length of the actual dining room in feet?

• Multiply by 12

• Divide by 12

• Subtract 12

• Add 12