Respuesta :

calculista
we know that

length of a sector=(∅/360°)*2*pi*r--------> when ∅ is in degree
r=[360°*length of a sector]/[∅*2*pi]

in this problem
∅=80°
length of a sector=100*pi ft

r=[360°*100*pi]/[80°*2*pi]-----> 225 ft

the answer is
225 ft

Otras preguntas