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Dmitrij [34]
3 years ago
9

A _____ is a point that helps to define an ellipse. ...?

Mathematics
2 answers:
Paha777 [63]3 years ago
8 0
I would say focus. I hope this helps.
mezya [45]3 years ago
3 0
Foci.
An ellipse is defined by two focal points.
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To find the decreased percentage,here's what we can do:
\frac{originl \: value - new \: value}{originl \: value}  \times 100\%

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