<image>Below is a pie chart of the planting areas of three kinds of vegetables. Based on the chart, answer the following questions.
(1) It is known that the planting area of tomatoes is 0.24 hectares. The total planting area of the three kinds of vegetables is ____ hectares.
(2) The planting area of cucumbers is ____ hectares.
(3) If eggplant accounts for 20% of the planting area, then the central angle of the sector representing the eggplant planting area is ____ degrees.