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1/4=luas juring/πr²
1/4=luas juring/22/7.14cm.14cm
1/4=luas juring/616cm²
luas juring =616cm²/4
luas juring=154 cm²
Luas segitiga= 1/2 ax t=1/2 14cm x 14 cm=98 cm²
maka luas daerah yg diarsir= luas juring- luas segitiga= 154 cm²- 98 cm²=56 cm²