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Verified answer
Mapel : MatematikaBab : Bangun Ruang Sisi Lengkung (BRSL)
Kerucut
d = 10 cm
r = 5 cm
s = 13 cm
Luas permukaan kerucut
= π x r ( r + s )
= 3,14 x 5 cm ( 5 cm + 13 cm )
= 15,7 cm x 18 cm
= 282,6 cm²