Rectangle Perimeter Area
Calculator

Inputs

Area
40

Results

Area
40
Perimeter
26
Diagonal
9.433981

Results

Area40
Perimeter26
Diagonal9.433981

formula-map diagram

Area
40
Perimeter
26
Diagonal
9.433981

Formula map

Formula

A = l × w, P = 2 × (l + w)

= 40

Note

Simplified model: these are exact results of the stated idealised formulas, assuming perfect shapes and exact inputs. Real measurements carry error, and the ellipse perimeter is a Ramanujan approximation. Verify independently before relying on these figures.

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