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ditanya : jari jari
jawab : v = 4/3 pi r^3
523 1/3 = 4/3 x 22/7 x r^3
r^3 = 5495/44 atau setara 124.89
r = 4.99 atau setara dengan 5cm
volume=523 1/3 cm³
π=22/7
ditanya
jari-jari=......?
jawab
r³=volume dibagi (4/3 dikali 22/7 )
r³=523 1/3 dibagi (4/3 dikali 22/7)
r³=523 1/3 dibagi ( 88/21 )
r³=523 1/3 dibagi 88/21
r³=1570/3dikali 21/88
r³=1570 dikali 7/88
r³=785 dikali 7/44
r³=5495/44=124,887
r=∛124,887
r=4,998