Help please please Shishir bought 4000 oranges at 70 paisa each. But 400 of them were rotten. He sold 2000 oranges at 90 paisa each. If he plans to make profit of Rs.200 at what rate must he sell the rest of the oranges?
NOTE:100PAISA=1RUPEE
PAISA IS SMALLER AND RUPEE IS BIGGER QUANTITY
PAISA=RE
RUPEE=RS
help help​

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.