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keliling alas x tinggi = 132 x 17 = 2244 cm²
maksudnya luas sisi kerucut itu apa??
luas alasanya apa luas seluruh permukaan kerucut??
132 = 22/7 . d
d = 132 . 7/22
d = 42
r = 21
Luas kerucut = 22/7 . r . (r+s)
luas selimut = 22/7 . r . s
cari s nya
s = akar > r`` + t``