ℓell is the perpendicular bisector of segment \overline{KM}
KM
start overline, K, M, end overline. NNN is any point on \ellℓell.
Line l intersected at its midpoint labeled L at a right degree angle by line segment M K. There is a point N on line l that is on the start of it. Dashed lines slant from point M to point N and from point K to point N.
Line l intersected at its midpoint labeled L at a right degree angle by line segment M K. There is a point N on line l that is on the start of it. Dashed lines slant from point M to point N and from point K to point N.
What theorem can we prove by reflecting the plane over \ellℓell?
Choose 1 answer:
Choose 1 answer:

(Choice A)
A
The segment joining midpoints of two sides of a triangle is parallel to the third side.

(Choice B)
B
Points on a perpendicular bisector of a line segment are equidistant from the segment’s endpoints.

(Choice C)
C
Base angles of isosceles triangles are congruent.

(Choice D)
D
Measures of interior angles of a triangle sum to 180\degree180°180, degree.