To work out the area of a circle: Find the value of the radius. If the diameter is given, this must be halved. Substitute the value of the radius into the formula for the area of a circle.

How do you find the area of a circle? Can you measure the area of a circle and use that to find a value for Pi?

How to Solve for Radius in Excel. The radius of a circle or a sphere is the distance between the center and the edge. The radius can be used to calculate a circle's diameter, area and circumference.

Remembering senior year and high school geometry. The post Math Puzzle for August 29, 2025 appeared first on Alameda Post.