Puzzle 113 - Area of a triangle

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 There is a triangle Ojl whose two vertices j and l are points on a circle and third vertex O  is the center of the circle. 

If the angle jOl is 60, what is the area of the triangle? What is the area of the sector Ojl?

 By the way, this puzzle and its solution was given to me by chatGPT. 

 You can find the solution here.  

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