Let's use similarity here :
The given triangles are similar to one another by AA criteria, since they are parallel, hence two of the angles of 1st triangle are equal to that of 2nd triangle.
that is :
so,
Now, let's use its results ~
Answer:
Explanation:
they are similar triangles and angle EKP and EHL is 90 and angle HEL and KEP is the same so the angles of triangle KEP and HEL are the same and they are similar to each other.
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