Shape of the feasible region formed by the following constraints is
2x + 3y ≥ 6, 2x + 3y ≤ 12, x ≥ 0, y ≥ 0
Shape of the feasible region formed by the following constraints is x + y ≤ 10, x + y ≥ 6, x ≥ 0, y ≥ 0
Shape of feasible region formed by following constraints is 4x + y ≥ 20, 2x + 3y ≥ 30, x, y, ≥ 0.