Calculate Scale Factor

The dimensions of a rectangular photo are 3.5 in. x 5 in. The dimensions of the photo are enlarged by a scale factor of 2.5. What is the perimeter of the new photo?

• 17.7 in²

• 8.75 in. X 12.5 in.

• 42.5 in.

• There is not enough information.

Tags

CCSS.7.G.A.1

The scale drawing car length is 3 cm. If the scale is 1 cm = 4 ft, what is the actual car length?

• 12 feet

• 16 feet 

• 10 feet

• 4 feet

Tags

CCSS.7.G.A.1

What is the scale factor? The small fry is the actual and the larger fry is the scale.

• 1/3

• 48

• 4

• 3

Tags

CCSS.7.G.A.1

When applying a scale factor you ________ by the scale factor.

• add

• subtract

• multiply

• divide

Tags

CCSS.7.G.A.1

When you apply a scale factor of 3 to the ordered pair (3, -4) what would the new point be?

• (9, -12)

• (9, 12)

• (-9, -12)

• (-9, 12)

Tags

CCSS.7.G.A.1

• (10 , 5)

• (5, 2.5)

• (2.5, 5)

• (5, 2)

Tags

CCSS.7.G.A.1

_________ ________ is the number you multiply by the sides to create a similar figure.

• Scale Factor

• Corresponding Angle

• Pi

• Mid Point

Tags

CCSS.7.G.A.1

What is the scale factor from the smaller quadrilateral to the larger?

• scale factor = 4

• scale factor = 10

• scale factor = 3

• scale factor = 2

Tags

CCSS.7.G.A.1

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

• 1/2

• 2/3

• 3/4

• 2

Tags

CCSS.7.G.A.1

Figure B is scale drawing of Figure A by a factor of 200%. Find side x and y.

• x= 6 in, y = 10 in

• x = 10 in, y = 6 in

• x = 5 in, y = 10 in

• x = 12 in, y = 5 in

Tags

CCSS.7.G.A.1