Find the area and the perimeter of a semi-circle of radius 7 cm. Share with your friends Share 0 Abhishek Jha answered this Dear Student, Here is the solution of your asked query: Radius of semicircle;r=7 cmSo area of semi circle=πr22=12×227×7×7=77cm2And perimeter of semi circle=πr+diameter of semi circle=227×7+2×7=22+14=36 cm Regards 0 View Full Answer