Kak tolong bantu dong plis pakai caranya

Luas 1/2 lingkaran = 1/2x(1/4 x π x 350^2) = 48125 m^2

Luas segitiga = 1/2 x a x t = 1/2 x 400 x 350 = 70000 m^2

Luas total = 48081,25 + 70000 = 118125 m^2