👉 A circle is a geometrical shape that has two equal halves or parts. The center of a circle is called the center and its radius is the length from the center to any point on the circumference. The area of a circle can be calculated using the formula A = πr² where r is the radius of the circle, and A is its area. This formula shows that the area of a circle is directly proportional to its radius squared. A chord is a line segment that connects two points on