Tolong bantu jawab ya..

Kesebangunan dan Kongruen

RS/UV = PS/PV
RS/6 = 12/8
RS/6 = 3/2
2RS = 3 x 6
2RS = 18
RS = 18 : 2
RS = 9 cm

PQ/PT = PS/PV
PQ/20 = 12/8
PQ/20 = 3/2
2PQ = 3 x 20
2PQ = 60
PQ = 60 : 2
PQ = 30 cm

L trapesium PQRS = 1/2 x jml sisi sejajar x t
= 1/2 x (RS + PQ) x PS
= 1/2 x (9 + 30) x 12
= 39 x 6
= 234 cm^2 (B).

*semoga membantu. sukses selalu ^_^