Question

TOLONG JAWAB YAHHHHHH

1. panjang AD adalah...
2. Nilai a adalah... cm

(wajib pake cara)

Answer 1

EC/AC = ED/AB =DC/BC
* EC/AC = ED/AB
* 8/AC = 6/12
* AC =8x12:6
* AC = 16
AC = AD + DC DC* = EC* +ED*
16 = AD + 10 = 8* +6*
AD = 16-10 = 64 +36
= 6 = 100
DC = √100 = 10


10/a+b = 12/30 = a/15
* 12/30 = a /15
* 12x15:30 = a
* 180 :30 = a
* 6 = a