find the area perimeter of the semi circle radius 4cm
Answers
Answered by
2
Area of semicircle = pi*r^2/2
= 3.14 * 4 * 4 /2 = 25.12 cm^2
Perimeter of semicircle = pi*r + 2r
= 3.14 * 4 + 2*4
= 12.56 + 8
= 20.56 cm
Similar questions