Question

answer the questions please​

Answer 1

central angle = 360L/2πr

(360 x 66 x 7)÷(2 x 22 x 21)

180

perimeter = 2 x radius + length of arc

50 = 2 x 5 + length of arc

50 - 10 = length of arc

length of arc = 40 cm

i hope this helps