bantu donk itu nomer 5 sama 6 plissss

no 5 aja nie gak papa ya

5) PB = α/360x2πr
17,6 = α/360 x 2 x 22/7 x 28
17,6 = α/360 x 176
17,6x360 = αx176
6336. = αx176
α = 6336 /176
α = 36