luas bangun di atas= ... cm2

luas 1/4 segitiga = 22/7 x 14 x 14 x 1/4
                              = 22 x 28 x 1/4
                              = 616/4
                              = 154 cm

luas segitiga        = 1/2 x 19 x 14
                              = 9,5 x 14
                              = 133 cm

luas trapesium    = 1/2 (14 + 28 ) x 5
                             = 2 ÷ 42 x 5
                             = 21 x 5
                            = 105 cm

luas semuanya= 154 + 133 + 105 = 392 cm²