A parallelogram ABCD with a circle and a diameter CE. Prove that point E is the orthocentre of triangle ABD.

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- Post author By Rik D. Tangerman
- Post date September 28, 2022
- No Comments on The iron curtain

A parallelogram ABCD with a circle and a diameter CE. Prove that point E is the orthocentre of triangle ABD.

Scroll down for a solution to this problem.

- Tags circle, parallelogram