diketahui :
luas alas = 1.256 cm2
tinggi = 15 cm
phi = 3,14
#mencari r
luas alas = phi x r^2
1.256 = 3,14 x r^2
400 = r^2
√400 = r
20 = r
jawab :
luas selimut = 2 x phi x r x t
luas selimut = 2 x 3,14 x 20 x 15
luas selimut = 6,28 x 300
luas selimut = 1.884 cm2
Jawaban:
B. 1.884 cm2
maaf kalo salah
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diketahui :
luas alas = 1.256 cm2
tinggi = 15 cm
phi = 3,14
#mencari r
luas alas = phi x r^2
1.256 = 3,14 x r^2
400 = r^2
√400 = r
20 = r
jawab :
luas selimut = 2 x phi x r x t
luas selimut = 2 x 3,14 x 20 x 15
luas selimut = 6,28 x 300
luas selimut = 1.884 cm2
Jawaban:
B. 1.884 cm2
maaf kalo salah