Math8 Units 1-3 Review

Front

What is a reflection in geometry?

Back

A reflection is a transformation that flips a figure over a line, creating a mirror image.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What does it mean for two shapes to be congruent?

Back

Two shapes are congruent if they have the same size and shape, meaning they can be perfectly overlapped.

Tags

CCSS.8.G.A.2

Front

What is a scale factor?

Back

A scale factor is a number that scales, or multiplies, some quantity. In geometry, it is used to determine how much a figure is enlarged or reduced.

Tags

CCSS.7.G.A.1

Front

How do you find the area of a rectangle?

Back

The area of a rectangle is found by multiplying its length by its width: Area = length × width.

Tags

CCSS.4.MD.A.3

CCSS.3.MD.C.7B

Front

What is the formula for the perimeter of a rectangle?

Back

The perimeter of a rectangle is calculated as: Perimeter = 2 × (length + width).

Tags

CCSS.4.MD.A.3

Front

What does it mean to translate a point in geometry?

Back

To translate a point means to move it from one location to another without changing its shape, size, or orientation.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

If Point A is at (x, y), what are the new coordinates after translating it 3 units up?

Back

The new coordinates will be (x, y + 3).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the relationship between the dimensions of Emily's mural and Susie's mural?

Back

Emily's mural takes up one-fifth of the wall space of Susie's mural.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How do you calculate the dimensions of a smaller rectangle given the area of a larger rectangle?

Back

To find the dimensions of a smaller rectangle, divide the area of the larger rectangle by the desired scale factor.

Tags

CCSS.7.G.A.1

Front

What is the significance of the line of reflection?

Back

The line of reflection is the line over which a figure is flipped to create its mirror image.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5