soal matematika SD kls 5 tolong bantu dijawab

trapesium = (a + b) x t
= 19 + 20 × 5 = 190 cm
trapesium = (a + b)x t
= 15 + 19 x 6 = 204 cm
luas seluruh nya = 190 + 204 = 394 cm persegi