Oh, dude, it's like both, kinda. So, when you're dealing with a rectangle or a square, you multiply the length by the width to get the area. But if you're dealing with a shape like a circle, you gotta use pi times the radius squared. So, yeah, it's a mix of adding and multiplying, but who really cares, right?
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you add the area
Multiply for the area, add for the perimeter.
no add the sides of the area
the formula for finding the area of an ellipse is add it then multiply and subtract that is the final
to find the perimeter you must add all sides. and to find area you have to multiply lenght and width