Find the perimeter of a sector of a circle with central angl

Find the perimeter of a sector of a circle with central angle =74 and radius r=4ft.

circle with central angle =7/4 and radius r=4ft.

length of arc L =r

length of arc L =4*(7/4)

length of arc L =7 ft

perimeter of a sector =L+r+r

perimeter of a sector=7 +4+4

perimeter of a sector=(7 +8) ft

perimeter of a sector=29.99 ft

perimeter of a sector=30 ft approximately