Scaling Two Dimensions

Using a horizontal scale factor of 80%, calculate the new length of the red side of the figure. Fill in the blank to answer the question: The new side length is _____ units.

Tags

CCSS.7.G.A.1

Using a vertical scale factor of 175%, calculate the new height of the figure.

• 14 units

• 12 units

• 12.25 units

• 15.75 units

• 175 units

Tags

CCSS.7.G.A.1

The pencil pictured was reduced to 60% of its original size. What are the new dimensions of the pencil?

• 0.9 units x 4.2 units

• 2.4 units x 11.2 units

• 1 unit x 5 units

• 0.9 units x 7 units

• 1.5 units x 4.2 units

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

The two rectangles are scale drawings. What is the measurement of x?

• 21

• 1.25

• 20

• 4

Tags

CCSS.7.G.A.1

In the figure above, a dilation from A to A' has occurred. What is the scale factor?

Mathematical Equivalence

ON

Tags

CCSS.8.G.A.3

What is the scale factor from figure A to B?

• 25%

• 12.5%

• 20%

• 400%

• 5%

Tags

CCSS.7.G.A.1

If a figure is scaled by a factor of 100%, what is true about the resulting figure.

• The new figure is the same size as the original.

• The new figure is two times larger than the original.

• The new figure is half the size of the original.

• The new figure is 100 times larger than the original.

Tags

CCSS.8.G.A.3

What does it means if the scale factor is less than 100% (less than 1)?

• The resulting figure will reduce.

• The resulting figure will enlarge.

• The resulting figure will stay the same.

• There is not enough information to answer the question.

Tags

CCSS.8.G.A.3

What does it mean if the scale factor is greater than 100% (greater than 1)?

• The resulting figure will be a reduction.

• The resulting figure will remain the same.

• The resulting figure will be an enlargement.

• There is not enough information to answer the question.

Tags

CCSS.8.G.A.3