Find the area of the largest circle on the pools surface

Reference no: EM13709275

Problem: A point source of light is located 6.6 m below the surface of a large pool of water.

Part A: Find the area of the largest circle on the pool's surface through which light coming directly from the source can emerge?

I known the correct answer but I need to know how to get that. Thanks in advance!

Reference no: EM13709275

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