Solve the equation. if necessary, round your answer to the nearest tenth.

4x2 = 121

a.
2.75, –2.75

b.
5.5, –5.5

c.
11, –11

d.
30.25, –30.25

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.