Answer:
it 1/2(pi)x(7)
Step-by-step explanation:
[tex] \frac{180}{360 } \times \pi {r}^{2} \\ \frac{1}{2} \times 3.14 \times 3.5 \times 3.5 \\ \\ = \frac{1}{2} \times \pi \times {3.5}^{2} [/tex]
