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L2 : Luas persegi
r lingkarang = 28/2 = 14
sisi persegi = 28/2 = 14
L1 =
1/4 x 22/7 x r x r
1/4 x 22/7 x 14 x 14
154
L2 = 14 x 14 = 196
L1+L2=154+196=350(C)