Radius = diameter ÷ 2
Radius = circumference ÷ (2π)
Radius = √(area ÷ π)
Radius = side ÷ √2 for a circle inscribed in a square
Radius = side ÷ 2 for a circle with the side as its diameter
Radius = distance from the center to any point on the circle
Radius = diameter ÷ 2
Radius = circumference ÷ (2π)
Radius = √(area ÷ π)
Radius = side ÷ √2 for a circle inscribed in a square
Radius = side ÷ 2 for a circle with the side as its diameter
Radius = distance from the center to any point on the circle