Universiteti

Teng yonli trapetsiyaning o’rta chizig’ining uzunligi va diagonallari

o’zaro perpindikulyar. Yuzini toppish kerak.

Trapetsiyaning diagonallari o’zaro perpindikulyar, shunga ko’ra uning o’rta chizig’i balandligiga teng.

B C

E m F

A D

Bunday trapetsiyaning yuzi:

Misol: diagonallari , yuzini toping.