Big Ideas Scale Factor, Triangles, Quadrilaterals

Is Figure B a scaled copy of Figure A?

• Yes

• No

Is Figure B a scaled copy of Figure A?

• Yes

• No

Find missing side

• 5

• 7

• 9

• 11

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

• x = 20

• x = 12

• x = 5

• x = 4

Which figure is scale copy of the original figure?

• A

• B

• C

• D

What is the scale factor?

• 1

• 2

• 3

• 4

Which of the following are scaled copies of the original portrait? Select ALL the apply.

• A

• B

• C

• D

• E

Jamie made a scale drawing of his apartment building.  The building is 300 ft tall.  He wants his scale to be 1 inch : 10 ft.  How tall should his building be in his scale drawing?

• 25 inches

• 60 inches

• 1/30 inch

• 30 inches

A rectangle has the dimensions 4cm by 5cm. A scale factor of 3 is used to enlarge the rectangle. What is the new area?

• 20 cm²

• 60 cm²

• 180 cm²

• 100 cm²

A rectangle has the dimensions 2.2cm by 4.5cm. A scale factor of 4 is used to enlarge the rectangle. What is the new area?

• 39.6 cm²

• 8.8 cm²

• 9.9 cm²

• 158.4 cm²