GUATEMALA CITY - Torrential rains brought by the first tropical storm of the 2010 season pounded Central America and southern Mexico, triggering deadly landslides. The death toll stood at 15 Sunday but authorities said the number could rise.
Archimedes proved the formula for the area of a circle (A = Ï r 2, where r is the radius of the circle) and showed that the value of Ï lay between 3 + 1/7 (approximately 3.1429) and 3 + 10/71 (approximately 3.1408).
One axis is called as the longest Chord or the Diameter of the circle. Half of the diameter is called as the radius of the circle. Radius is of prime importance in the cases where we need to find the area of the shaded region, inscribed in the circle.Now letâs understand how to find the area of a shaded region in a circle.For this first write the area of the circle in its usual way as: Ïr2. Where, 'r' is the radius of the circle. We can consider any shape inscribed in the circle.The only thing we need to know is the Percentage or fraction of circle it covers.or this first write the area of the circle in its usual way as: Ïr2. Where, 'r' is the radius of the circle. We can consider any shape inscribed in the circle. The only thing we need to know is the Percentage or fraction of circle it covers.