Independent Work Lesson 11

Which of these constructions would construct a line of reflection that takes the point A to point B?

• Construct the perpendicular bisector of segment AB.

• Construct a line through B perpendicular to segment AB.

• Construct the line passing through A and B.

• Construct a line parallel to line AB.

A point P stays in the same location when it is reflected over line ℓ. What can you conclude about P?

• P is on line ℓ

• P is the origin

• P is equidistant from line ℓ

• P is at infinity

Lines ℓ and m are perpendicular with point of intersection P. Does a 180 degree rotation, with center P, have the same effect on points in the plane as reflecting over line m?

• Yes, it has the same effect.

• No, it does not have the same effect.

Here are 4 triangles that have each been transformed by a different transformation. Which transformation is not a rigid transformation?

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There is a sequence of rigid transformations that takes A to A', B to B', and C to C'. The same sequence takes D to D'. Which of the following is the correct label for D'?

Here are 3 points in the plane. Which point is closer to point C ?

• Point A

• Point B

Diego says a quadrilateral with 4 congruent sides is always a regular polygon. Mai says it never is one. Do you agree with either of them?

• Agree with Diego

• Agree with Mai

• Agree with neither

• Agree with both