Learn how to calculate the areas of rectangle, triangle, and circle in Excel for a single cell or range of cells usin this formula.

The radius of the circle is 8 cm. Substitute 𝒓 = 8 into the formula for the area of the circle. Multiply π by the square of the radius. 3۰14 × 82 = 200۰96.

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.

One of the oldest calculus problems, finding the area of a circle, can be visualized using a pizza. By dividing it up into ever smaller slices and laying them out next to one another, eventually ...

The area of a circle is pi times the radius squared. This is half of a circle with a radius of 1 (no units) such that it would have an area of pi/2. If I find the area with some other method, I ...

Learn how to find the equation of a circle and use the discriminant to prove for tangency in intersections for Higher Maths.