Respuesta :
Answer:
Two sector of 90 degree cut out(90*2=180 degree) means semicircle
perimeter of circle= 2πr
= 2*22/7*3=18.85 cm
perimeter of semicircle=18.85/2=9.42 cm approx
Answer:
Two sector of 90 degree cut out(90*2=180 degree) means semicircle
perimeter of circle= 2πr
= 2*22/7*3=18.85 cm
perimeter of semicircle=18.85/2=9.42 cm approx