Find the surface area of the cone given. The radius is 9.1cm. The slant height is 13.7cm.

Give your answer correct to 2 decimal places.
Please directly answer the question and provide the final value, e.g., 1, 2.5, 300.
Question: Find the surface area of the cone given. The radius is 9.1cm. The slant height is 13.7cm.

Give your answer correct to 2 decimal places.
Please first conduct reasoning, and then answer the question and provide the final value, e.g., 1, 2.5, 300, at the end.
Question: Find the surface area of the cone given. The radius is 9.1cm. The slant height is 13.7cm.

Give your answer correct to 2 decimal places.