Question

Perhatikan gambar di bawah ini. hitunglah panjang EF jika DC = 10 cm, CF = 4 cm, FB= 6 cm, AB = 18 cm

JAWAB SECEPATNYA DI KUMPULIN BSK ;D
PAKE CARA

Answer 1

EF = [DC x FB] + [AB x CF]
                   CF + FB
EF = [10 x 6] + [18 x 4]
                 6 + 4
EF = 60 + 72
             10
EF = 132/10
EF = 13,2 cm

Answer 2

EF = (CF x AB + FB x DC )  / CF+ FB
EF = (4 x 18 + 6 x 10) / 4+6
EF = 72 + 60 / 10
EF =132 / 10
EF =13,2

Semoga Membantu