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).
Similarly, the total area of the overlapped section of two circles with the same radius (r) can also be expressed by with 0 â¤ d â¤ 2 r, where d is the distance between the centers of the circles. The following graph shows the relation between d and A, , when r = 1.