Area Calculator
Calculate the area of rectangles, squares, circles and triangles.
Area
40.0000
Formulas
Rectangle: Area = w × h, Perimeter = 2(w + h)
Square: Area = s², Perimeter = 4s
Circle: Area = πr², Circumference = 2πr
Triangle: Area = ½ × base × height
Frequently Asked Questions
What is the area of a rectangle with 10.00 × 4.00?
40.0000.