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s=√r²+t²
s = √1,5²+2²
s = √2,25+4
s= √6,25
s = 2,5
baru cari luasnya
L = L.selimut kerucut + L1/2 Bola
L = πrs + 2πr²
L = 3,14 . 1,5 . 2,5. + 2 . 3,14 . 1,5²
L = 11,775 + 2 . 3,14 . 2,25
L = 11,775 + 14,13
L = 25,905 cm²
Selesai :) difavorite yaa ;;)