- Radius (r) = 3xy^3
- We know, area of a circle = πr^2
- Therefore,
[tex]\pi \: {(3xy}^{3} ) ^{2} \\ = \pi \times {3}^{2} \times {x}^{2} \times {y}^{3 \times 2} \\ = 9\pi {x}^{2} {y}^{6} [/tex]
Answer:
[tex]9\pi {x}^{2} {y}^{6} [/tex]
Hope you could understand.
If you have any query, feel free to ask.
