tolong saya guys kalo bisa sama caranya/rumusnya

AC² = CD. BC
= 16 . 20
= 320
AC = √ 320

AB² = BD. BC
= 4 . 20
= 80
AB = √ 80

AD² = BD. CD
= 4 . 16
= 64
AD = √ 64
= 8

MUNGKIN....

AD²= CD x DB
= 16 x 4
= 64
AD = √64
= 8 cm

AB²= BD x BC
= 4 x 20
AB =√80
= 8.9 cm



AC²= CD x CB
= 16 x 20
AC =√ 320
= 17.8 cm


semoga membantu maaf kalo salah ^o^