the radius of a semicircular plot is 25 . what is the approximate perimeter of the plot ?
perimeter of a circle = 2 pi * r perimeter of a semicircle = pi * r + 2 r aprox perimiter = 3.14 * 25 + 2 * 25 = 128.50 approximately 129 answer c
add(25, divide(circumface(25), const_2))