kak tolong no 26 sama caranya

72/360 = 1/5

1/5 X pi r (pangkat 2) = 1/5 x 3.14 x 10 x 10 = 62.8

Luas juring =(72/360) x luas lingkaran
= 1/5 x 3,14 x 10 x 10
= 62,4 cm^2