CP Geo Unit 5 Review

Front

What is a translation in geometry?

Back

A translation is a transformation that moves every point of a shape the same distance in a specified direction.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

How do you translate a triangle 2 units left and 9 units up?

Back

Subtract 2 from the x-coordinates and add 9 to the y-coordinates of each vertex of the triangle.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What happens to the coordinates of a point when it is reflected over the y-axis?

Back

The x-coordinate changes sign, while the y-coordinate remains the same.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the new location of point (-5,2) after reflecting over the y-axis?

Back

(5,2) because the x-coordinate changes from -5 to 5.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the difference between rigid and non-rigid transformations?

Back

Rigid transformations preserve the shape and size of a figure, while non-rigid transformations do not.

Tags

CCSS.HSG.CO.B.6

Front

Which of the following is not a rigid transformation: Translation, Reflection, Rotation, or Dilation?

Back

Dilation is not a rigid transformation because it changes the size of the figure.

Tags

CCSS.HSG.CO.A.2

Front

What is a dilation in geometry?

Back

A dilation is a transformation that alters the size of a figure but keeps its shape, using a scale factor.

Tags

CCSS.8.G.A.3

Front

How do you find the image of a point under dilation with a scale factor?

Back

Multiply the coordinates of the point by the scale factor.

Tags

CCSS.8.G.A.3

Front

What is the image of point B (-10,-6) under a dilation with center at the origin and scale factor k = 1/2?

Back

(-5,-3) because each coordinate is multiplied by 1/2.

Tags

CCSS.8.G.A.3

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