Dimensional change

If a figure is dilated by a factor of 1.5, the area of the figure will change by a factor of ___.

Tags

CCSS.7.G.A.1

What do you think the relationship is between the scale factor (how much larger the shape is getting) and area? Think about what number you multiply by to get the new perimeter.

Tags

CCSS.7.G.A.1

Tags

CCSS.7.G.A.1

The geosphere at Epcot has a diameter of 265 ft. If the scale model is 2/275 in, what is the volume proportion of the scale model to the actual geosphere?

• 2/275

• 1/275

• 4/75625

• 8/20796875

A pentagon has an area of 25 ft², the sides are tripled what is the new area?

• A = 75 ft²

• 100 ft²

• 200 ft²

• 225 ft ²

Tags

CCSS.7.G.A.1

The rectangular prism has a height of 3 in. , width of 4 in., and a length of 5 in. If the length is doubled, what is the new volume?

• 120 in³

• 240 in³

• 480 in³

• 520 in³

Tags

CCSS.7.G.B.6

The measurements of a hexagon are changed by a scale factor of 4, what will happen to the area?

• The area will be multiplied by a factor of 4

• The area will be multiplied by a factor of 8

• The area will be multiplied by a factor of 16

• We cannot determine the new area

Tags

CCSS.7.G.A.1

A hexagon is graphed on a coordinate plane. The hexagon is dilated to create a larger hexagon, with the origin as the center of dilation. Which rule could represent this dilation?

• A. (x, y) --> (x + 7, y + 7)

• B. (x, y) --> (4/3x, 4/3y)

• C. (x, y) --> (1.2 + x, 1.2 + y)

• D. (x, y) --> (0.2x, 0.2y)

Tags

CCSS.8.G.A.3

A rectangle has a base of 10 mm and a height of 6 mm, and we double the height, what is the new perimeter and area?

• Perimeter = 22 mm and Area = 120 mm

• Perimeter = 44 mm and Area = 120 mm

• Perimeter = 32 mm and Area = 240 mm

• Perimeter = 32 mm and Area = 240 mm

Tags

CCSS.7.G.A.1

• F

• G

• H

• J

Tags

CCSS.7.G.A.1