Matematika

Pertanyaan

AB=6
BD=4
ditanya
panjang CD=...cm
a.5
b.5,4
c.6
d.7,2
mohon dijawab yaa pakai cara
AB=6 BD=4 ditanya panjang CD=...cm a.5 b.5,4 c.6 d.7,2 mohon dijawab yaa pakai cara

1 Jawaban

  • AB^2 = BD x BC
    BC = AB^2 / BD
    BC = 6^2 / 4
    BC = 36/4 = 9

    BC = BD + CD
    CD = BC - BD
    CD = 9 - 4
    CD = 5 cm