Question

Prove that the perpendicular
from one corner of a regular
pentagon bisects the opposite side​

Answer 1

Answer:

Draw the bisector from one vertex to the opposite side. By congruent triangles, the pink segments have equal length. Then since the blue segments are equal by construction, the two central triangles are congruent and so the angles formed by blue and black segments are equal and hence 90 degrees.

Step-by-step explanation:

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