To prove: Side EF is parallel to HI.
Explanation of Solution
Given:
The
The ratio of side is
Calculation:
In triangle GJK and GHI,
Hence,
Also, angle 1 and 3 are the corresponding
Thus, lines KJ and IH are parallel lines.
Angle 1 is equal to angle 2.
From equation (1) and (2),
Angles 2 and 3 are the alternate interior angles and equal to each other.
Hence, Side EF is parallel to HI.
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