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Чотирикутники

Властивості та ознаки чотирикутників

QuestionAnswer
Прямокутник у якого всі сторони рівні квадрат
Опуклий чотирикутник у якого дві сторони паралельні трапеція
Паралелограм у якого всі сторони рівні ромб
Паралелограм у якого всі кути рівні прямокутник
Якщо в опуклого чотирикутника дві сторони паралельні і рівні, то цей чотирикутник паралелограм
Якщо в паралелограма діагоналі рівні, то цей паралелограм прямокутник
Якщо в опуклого чотирикутника діагоналі точкою перетину діляться навпіл , то цей чотирикутник паралелограм
Діагоналі перетинаються під прямим кутом, але не рівні в ромба
Діагоналі рівні і є бісектрисами кутів в квадрата
Created by: 407491926459027
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