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r = 14 cm
dipotong 6 bagian
maka :
A. besar sudut masing2 = 360 / 6 = 60 derajat
b. luas potongan :
60/360 = luas / 22/7 x r²
1 / 6 = luas / 616
luas = 1/6 x 616
luas = 102, 66 cm
jadi luas potongan masing2 adalah 102, 66 cm²
b. 1/6 . phi . r . r = 1/6 . 22/7 . 21. 21
= 1/6 . 66 . 21
= 11 . 21
= 231
Maaf kalo salah ..