tolong jwb yaa yg serius...ya soalnya aku butuh jawaban yg benar...

Perbandingan

No.4
BF/AB = FG/AC
4/16 = FG/20
1/4 = FG/20
20 = 4FG
20/4 = FG
FG = 5 cm

BF/BD = FG/DE
4/7 = 5/DE
4DE = 5 x 7
4DE = 35
DE = 35/4
DE = 8,75 cm

AD = AB - BF - FD
AD = 16 - 4 - 3,5
AD = 8,5 cm

No.5
AP = 2/2+3 x 15
AP = 2/5 x 15
AP = 2 x 3
AP = 6 cm

PB = 3/2+3 x 15
PB = 3/5 x 15
PB = 3 x 3
PB = 9 cm

*semoga membantu. sukses selalu ^_^