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Sudut AOD = 90°
OA = OD = 14cm
Luas tembereng = L.juring OAD - L.∆AOD
L.juring OAD = (90°/360°)×πr²
L.juring OAD = (1/4)×(22/7)×14×14
L.juring OAD = 154cm²
L.∆AOD = ½×OA×OD
L.∆AOD = ½×14×14
L.∆AOD = 98cm²
L. Tembereng= L.juring OAD-L.∆AOD
L. Tembereng= 154cm²-98cm²
L. Tembereng= 56cm²