中点 ちゅうてん連結 れんけつ定理 ていりじゃなかったです
chūtenrenketsuteirijanakattadesu

Noun
Desu Copula

The polite, past negative form of 中点連結定理

1. Wasn't the midpoint connection theorem.

Past/Perfective
Negative
Polite
Casual Register
Mathematics