yg ini gimana ya?? jawab beserta caranya ya:)

Kesebangunan dan Kongruen

FG/CD = AE/AB
FG/16 = 18/24
FG/16 = 3/4
4FG = 3 x 16
4FG = 48
FG = 48/4
FG = 12 cm

AG/AD = AE/AB
AG/AG+5 = 18/24
AG/AG+5 = 3/4
4AG = 3(AG + 5)
4AG = 3AG + 15
4AG - 3AG = 15
AG = 15 cm

L trapesium AEFG = 1/2 x jml sisi sejajar x tinggi
= 1/2 (AE + FG) AG
= 1/2 (18 + 12) 15
= 1/2 x 30 x 15
= 15 x 15
= 225 cm^2 (B).

*semoga membantu. sukses selalu ^_^

(16×18)/24=12. => karena sebangun sisi yang bersesuaian digunakan perbandingan

L trapesium AEFG
= ((a+b)/2) ×15
=((12+18)/2)×15
=(30/2)×15
=15×15=225 cm²