tolong jawab ya no 7 pake cara sama rumus

Bab Bangun Datar
Matematika SD Kelas VI

Layang - layang
luas = 250
(1/2) x AC x BD = 250
(1/2) x AC x (10 + 10) = 250
AC x 10 = 250
AC = 250 : 10
AC = 25 cm