" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
DG : DB = FG : AB
8 : (8 + x) = 4 : 7
4(8 + x) = 7 . 8
32 + 4x = 56
4x = 56 - 32
4x = 24
x = 24/4
x = 6cm
lihat Δ BCD
BG : BD = GF : DC
6 : (6 + 8) = y : 14
6 : 14 = y : 14
14.y = 14 . 6
y = 6 cm
x + y = 6 + 6
= 12 cm ...... jawaman C
9) misal : AQ = BP = 3x
QC = PD = 2x
panjangkan PQ memotong BC di R
lihat Δ BDC
BP : BD = PR : DC
3x : 5x = PR : 20
3 : 5 = PR : 20
5.PR = 3 . 20
5.PR = 60
PR = 60/5
PR = 12 cm
lihat Δ ABC
CQ : CA = QR : AB
2x : 5x = QR : 10
2 : 5 = QR : 10
QR = 2 . 10/5
QR = 4 cm
PQ = PR - QR
= 12 - 4
= 8 cm
untuk no.9 perhatikan sketsa di bawah ini ...