Help i forgot how to solve this (i dont want u to give me the answer i want u to tell me how to sovle it)

ayuda, olvidé cómo resolver esto
(No quiero que me des la respuesta, quiero que me digas cómo solucionarlo)

What is the distance between the points 4,10 and -3,-14 on the coordinate plane

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Aswimming pool is a rectangle with semicircles on the end. the rectangle is 12 meters wide and 30 meters long. the diameter and width of the swimming pool are equal. sketch and label an overhead diagram of the swimming pool. find the area of the swimming pool floor.