After leaving a warehouse, a trucker drove 28 miles south to make a delivery. the trucker then made three more deliveries, driving 13 miles west, 43 miles north, and 13 miles east. how far was the trucker from the warehouse?

A3cm×3cm\greend{3\,\text{cm} \times 3\,\text{cm}} 3cm×3cm start color greend, 3, space, c, m, times, 3, space, c, m, end color greend rectangle sits inside a circle with radius of 4cm\blued{4\,\text{cm}} 4cm start color blued, 4, space, c, m, end color blued . what is the area of the shaded region? round your final answer to the nearest hundredth.