Questions: Lexi started with CD on her paper. She folded her paper so that point C was on top of point D. Then, she unfolded her paper and labeled the intersection of the fold and the line segment with point E. She used a straight edge to draw QR at an arbitrary angle through point E. Finally, she drew CR through points C and R and DR through points D and R. Which line segment or line is the segment bisector in this scenario?
(1 point)
CR
CD
DR
QR
Transcript text: Lexi started with $\overline{C D}$ on her paper. She folded her paper so that point $C$ was on top of point $D$. Then, she unfolded her paper and labeled the intersection of the fold and the line segment with point $E$. She used a straight edge to draw $\overleftrightarrow{Q R}$ at an arbitrary angle through point $E$. Finally, she drew $\overleftrightarrow{C R}$ through points $C$ and $R$ and $\overleftrightarrow{D R}$ through points $D$ and $R$. Which line segment or line is the segment bisector in this scenario?
(1 point)
$\overleftrightarrow{C R}$
$\overline{C D}$
$\overleftrightarrow{D R}$
$\overleftrightarrow{Q R}$
Solution
Solution Steps
Step 1: Understand the Problem
Lexi started with line segment CD on her paper. She folded her paper so that point C was on top of point D. Then, she unfolded her paper and labeled the intersection of the fold line with line segment CD as point E. She used a straight edge to draw QR at an arbitrary angle through point E. Finally, she drew CR through points C and R, and DR through points D and R. The question asks which line segment or line is the segment bisector in this scenario.
Step 2: Identify Key Information
Line segment CD is given.
Point E is the midpoint of CD because the paper was folded such that C coincides with D.
QR is drawn through point E.
CR and DR are drawn through points C, R, and D, R respectively.
Step 3: Determine the Segment Bisector
Since point E is the midpoint of CD, any line passing through E and intersecting CD will bisect CD. In this case, QR passes through E and intersects CD.
Final Answer
The line segment or line that is the segment bisector in this scenario is:
\[ \overline{QR} \]