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E
EdgePlace where two surfaces meet.
Ellipse Looks like a flattened circle.
EndpointPoint marking the end of a line segment.
Equation Mathematical sentence where the left side equals the right.
Equalateral Triangle A triangle with 3 equal sides and angles.
EstimateTo make a rough calculation.
EvenCan be divided by two.
Exponent Shows the number of times the base number is multiplied by itself.