tolong bantu yh. pakai cara segitiga kongruen kls 9

Pakai teorema pythagoras, didapat:
CE = akar(AD^2 - AE^2)
CE = akar(25^2 - 24^2)
CE = akar(625 - 576)
CE = akar(49)
CE = 7
maka:
BE = BC - CE
BE = 25 - 7
BE = 18

ket: ^ = pangkat