yg bisa tolong bantu jawab no.24-26 ya+caranya. Makasih:) GBu

24. misal sudut juring = x
       x/360 phi r^2 = 1/8 phi r^2
x/360 = 1/8
x = 45(C)
25. l = 120/360 x 22/7 x 21^2
 = 462 (B)

26. L Tembereng = L juring - L segi3
 = 1/4 x 22/7 x 14^2 - (1/2 x 14 x 14)
= 154 - 98
= 56(A)