November 2018 1 11 Report

Sprawdź, czy trójkąt jest prostokątny.

A(3,0) B(-6,8) C(-2,-2)

I obliczyłam odcinki AB, BC i AC. Wyszło kolejno √145, √164, √29.
Sprawdziłam z tw.Pitagorasa i nie równa się to sobie. Czyli nie jest prostokątny. A w odpowiedziach jest, że jest prostokątny.
Prosze o pomoc.

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