The perimeter of the sector of the circle of radius 42cm is

108cm. Find the area of the sector.

• perimeter of sector= r+r+arc_length
  108=42+42+arc
  arc_lngth=24
  
  now area of segment formula === arc_length*r/2
  24*42/2=504
• 12 years agoHelpfull: Yes(51) No(3)
• answer is 2268
• 12 years agoHelpfull: Yes(19) No(16)
• ans is 504cm sq
• 12 years agoHelpfull: Yes(9) No(3)
• perimeter of a sector:l+2r=108;
  l=24;
  area of sector=l*r/2=24*42/2=604sq.cm
• 12 years agoHelpfull: Yes(7) No(13)
• perimeter of sector= L+2r
  108=L=2*42
  so, L=24
  sector=L/r
  so, area = (sector/2pi)*pi*r*r
  =504sq cm.
• 12 years agoHelpfull: Yes(7) No(3)
• Perimeter of Sector=Radius+Radius+Arc Length(A)=42+42+A=180
  therefore A=24
  
  then Area of the Sector=A*radius/2=504
• 12 years agoHelpfull: Yes(5) No(0)
• 1296 cm^2
  
• 12 years agoHelpfull: Yes(4) No(13)
• sorry,it is 1268
• 12 years agoHelpfull: Yes(1) No(17)
• p=L+2r
  108=L+42
  L=20
  now A=(1/2)Lr
  A=(1/2)*20*42=420
  
• 11 years agoHelpfull: Yes(1) No(2)
• plz explain how ?
  
• 12 years agoHelpfull: Yes(0) No(5)
• 108=2r+l
  l=108/(2*42)=1.29
  also l=2*pi*r*theta/360
  find theta
  then arae of sector=pi*r^2*theta/360
• 11 years agoHelpfull: Yes(0) No(0)