Question

Tolong jawab no 15 a-f

Answer 1

A. EF = CF*AB/CB
EF = 6*8/10
EF = 48/10
EF = 4,8 cm

B. AB = EF*CB/CF
AB = 6*7/4
AB = 42/4
AB = 10,5 cm

C. hal yang harus dilakukan pertama adalah mencari CE
CE = AC*EF/AB
CE = 9*2/6
CE = 18/6
CE = 3 cm
panjang AE = Panjang AC - CE = 9 - 3 = 6 cm

D. CF/CB = EF/AB
x / x+4 = 5/7
7x = 5(x+4)
7x = 5x + 20
7x - 5x = 20
2x = 20
x = 20/2
x = 10
CF = 10 cm

E. soal bonus harus ada perbaikan

F. EF =
EF =
EF =
EF = = 6 cm