tolong jwab kn no33 pakai cara
Matematika
netta16
Pertanyaan
tolong jwab kn no33 pakai cara
1 Jawaban
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1. Jawaban munafilkhofa
gabungan kerucu dan setengah bola
t kerucut = 4 cm
d = 6 cm
r = 3 cm
s = √4² + 3²
= √25 = 5
luas selimut kerucut = πrs
= π x 3 x 5
= 15π
= 47,1cm²
luas 1/2 bola
1/2 x 4πr²
= 2 x π x 3²
= 18π
= 56,52 cm²
luas gabungan = 15π + 18π = 33π cm²
56,52 cm² + 47,1 cm² = 103,62 cm²