Mathematics
Mathematics, 20.06.2020 10:57, kekeke68

The proof, with a missing reason, proves that the measure of angle ECB is 54°. Which theorem can be used to fill in the missing reason?

Concurrency of Medians Theorem

Isosceles Triangle Theorem

Midsegment of a Triangle Theorem

Triangle Inequality Theorem


The proof, with a missing reason, proves that the measure of angle ECB is 54°. Which theorem can

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