Recognised as 2D shape
Circle with radius 4
- Circle
- r = 4
- area 50.2655
A circle of radius 4 has an area of 50.265482 square units and a circumference of 25.132741 units. Its diameter is 8, and its area expressed exactly is 16π.
Measurements
Radius4
Diameter8
Circumference25.132741232πr
Area50.26548246πr²
Area in terms of π16π
Sector area per degree0.13962634
Arc length per degree0.06981317
Inscribed square side5.65685425the largest square that fits inside
Circumscribed square side8
Formulas used
AreaA = πr²
CircumferenceC = 2πr
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