Scale
Area
X =
Which is the Scaled Copy?
Keys & Scales
100

What is the scale factor from small triangle to big triangle ?

What is 1.5 cm?

100

A room has dimensions of 10ft x 20ft. What is the area of the room?

200 square feet

100

The value of the unknown side length x is ...

What is x = 2.5?

100

A triangle has the side lengths of 2, 4, 7. Of the following, which side lengths below would create a scaled copy...

1, 2, 3.5           1.5, 3, 5            2.5, 5, 8.5

What is 1, 2, 3.5

100

A map has a scale of 2 cm = 15 miles. A trip will be 7 cm on the map, the actual distance will be ...

What is 52.5 miles?

200

What is the scale factor from the top triangle to the bottom triangle ? HINT: DIVIDE to find your answer. 

What is 1.25?

200

Rectangle A has an area of 10 square cm.

Rectangle B has an area of 100 square cm.


What is the scale factor from the area of Rectangle A to the area of Rectangle B?

10 



200

The value of the unknown side length x is ...

What is x = 7?

200

A triangle has the side lengths of 8, 9, 15. Of the following, which side lengths below would create a scaled copy...

16, 18, 25            16, 15, 30            16, 18, 30

What is 16, 18, 30?

200

A blueprint has a scale of 2 cm = 6 feet. A house is 30 feet wide, the blueprint will be this distance in centimeters ...

What is 10 cm?

300

The scale factor from big triangle to small triangle is? HINT: It will be a fraction or decimal.  

.

What is 1/4? or 0.25?

300

If you enlarged a figure using a scale factor of 5, how much larger will the image area be compared to the original?

25 times larger

300

The value of the unknown side length ? is ...

What is ? = 20?

300

A triangle has the side lengths of 4, 5, 6. Of the following, which side lengths below would create a scaled copy...

1, 1.25, 7.5        5, 6.25, 7.5         2, 2.5, 3.25

What is  5, 6.25, 7.5?

300

The scale of a rectangle is 9 cm wide and 11 cm long. If the actual width is 36 inches, then the actual area will be ... 

What is 1,584 sq. in?

400

What is the scale factor from a square that is 4in x 4in to a new square that is 28in x 28in ?

What is 7?

400

It's the definition of area.

What is the amount of space inside a figure?

400

The value of the unknown side length ? is ...

What is ? = 7.2?

400

A triangle has the side lengths of 8, 12, 22. Of the following, which side lengths below would create a scaled copy...

4, 6, 11           6, 9, 16          12, 17, 30

What is 4, 6, 11?

400

A rectangle is drawn below on the grid. If a scale factor of 1/2 is applied, the perimeter of the copy is ....


What is 9 units?

500

What is the scale factor of a picture that was 3.5cm x 2.5cm and is now 7cm x 5cm?

What is 2?

500

What is the formula for finding the area of a triangle?

1/2 base x height

500

4.5 cm

500

A triangle has the side lengths of 5, 10, 15. Of the following, which side lengths below would create a scaled copy...

10, 20, 25            4, 8, 12            16, 18, 30

4, 8, 12

500

A map has a scale of 10 cm = 55 miles. A trip will be 44 miles, the distance on the map will be ...

8 cm