area of circle = pi r squared diameter is 63cm then radius is 63/2, or 31.5cm 3.14*31.5^2= 3115.665cm squared 3115.665 is the area of the whole circle, divide that by two to get the area of the semicircle so 3115.665/2 = 1557.8325 cm squared 1557.8325 rounded to two decimal points is 1557.83cm squared 1557.83cm squared is the area of the semi circle hope that helped! :)
