Scale Drawings and Area

Question 1

Question 2

Revolt · Accepted Answer

.: 2; .: 19; times the area of the original figure.: 4

Question 2

The scale factor is ½✔ 234.5.

Revolt · Accepted Answer

✔ 2; .: 2; .: 19; times the area of the original figure.: 4

Question 3

The perimeter of the enlarged rectangle can be found by multiplying the scale factor and the original perimeter to get 4.759.518✔ 19.

Revolt · Accepted Answer

✔ 19

Question 4

The area of the scale model is 23✔ 4 times the area of the original figure.

Revolt · Accepted Answer

✔ 4

Question 5

Maria solved the area problem below. What was her error?

Revolt · Accepted Answer

She forgot to square the scale factor.

Question 6

Which statements describe true relationships? Check all that apply.

Revolt · Accepted Answer

The enlarged area is 4 times the original area, which is the square of the scale factor.; The enlarged perimeter is 2 times the original perimeter, which is the scale factor.; The perimeter is proportional to the scale factor and the area is proportional to the square of the scale factor.

Question 7

What is the area of the enlarged triangle? 37.5 112.50✔ 281.25562.5 cm

Revolt · Accepted Answer

✔ 281.25

Question 8

A backyard is 40.5 feet long and 25 feet wide. In order to install a pool, the yard needs to be reduced by a scale of . What is the area of the reduced yard? feet2

Revolt · Accepted Answer

112.5

Question 9

✔ 25 49 175 196 mm

Revolt · Accepted Answer

✔ 25

Question 10

The scale factor of a room for a scale drawing is 2.3. The actual length of a wall in the room is 46 feet and the actual width of the room is 69 feet. What is the area of the scale drawing?

Revolt · Accepted Answer

600 square feet

Scale Drawings and Area Answers

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