tentukan daerah yg diarsir?? tolong dibantu jawab beserta caranya

L 1 = 1/2 . phi . r kwadrat
= 1/2 . 22/7 .7 .7
= 11 . 7
= 77 cm^2
L 2 = s. s
= 14. 14
= 196 cm^2
L3 = L2 - L1
= 196 - 77
= 119 cm^2

{ SEMOGA BERMANFAAT }