A sequence of transformations is described below.

A translation

A reflection over a line \overleftrightarrow{PQ}

PQ



P, Q, with, \overleftrightarrow, on top

A reflection over another line \overleftrightarrow{RS}

RS

R, S, with, \overleftrightarrow, on top

Which of the following must be preserved under this sequence of transformations?

Choose 1

Choose 1

(Choice A)

A

Angle measures only

(Choice B)

B

Segment lengths only

(Choice C)

C

Both angle measures and segment lengths

(Choice D)

D

Neither angle measures nor segment lengths

I KNOW THE ANSWER ITS: C