Question

Tolong jawab dengan penjelasan dan caranya ya guys....

Answer 1

DEF sebanghun HGF
DF ~ FH
DE ~ GH
EF ~ FG

GH/FH = DE/DF
GH /12 = 5/4
GH = 5/4 (12) = 15

FG/FH = EF/DE
FG /12 = 7/4
FG = 7/4(12)= 21

Answer 2

DF/FH = EF/FG
4/12 = 7/FG
4 FG = 12×7
4 FG = 84
FG = 84/4
FG = 21

DF/FH = DE/GH
4/12 = 5/GH
4 GH = 12 × 5
GH = 60/4
GH = 15