Respuesta :

#47

Radius:-

  • √(8/2)²+3²
  • √4²+3²
  • √5²
  • 5in

Circumference

  • 2πr.
  • 2(3.14)(5)
  • 10(3.14)
  • 31.4in

#48

Half length of chord

  • √25²-7²
  • √625-49
  • √576
  • 24ft

Length of chord

  • 2(24)
  • 48ft²