Line segment ef is shown on a coordinate grid: the line segment is rotated 180 degrees counterclockwise about the origin to form e'f'. which statement describes e'f'? a e'f' is perpendicular to ef. b e'f' and ef are equal in length. c e'f' is half the length of ef. d e'f' is greater than twice the length of ef.

B. E'F' and EF are equal in length.

Step-by-step explanation:

The rotation has two main properties:-

1. Rotations preserve size ( includes sides and angles).

2. Lines connecting the center of rotation to the pre-image and the corresponding point on the image have equal length.

Given : The line segment is rotated 180 degrees counterclockwise about the origin to form E'F'.

Then, E'F' and EF are equal in length. ( by property 1.)

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