Rectangular area: 28 * 24 = 672m2: rectangular area: 28 * 40 = 1 120m2 height: 40-24= 16m upper bottom: 28+20 = 48m height: 40-24 =/kloc-.

Trapezoidal area: (48+60) * 16/2 = 864m2 Bottom: 60-28 = 32m.

Total area: 864+672 = 1536m2 trapezoidal area: (20+32) *16/2 = 416m2.

Total area:1120+416 =1536 m2.

A: The area of this vegetable field is 1536 square meters.