Jawaban:
no 14.
Luas Tabung = 2πr x (r+t)
= 2.22/7.14 x (14+20)
= 44.2 x 34
= 88.34
=2.992
Luas kerucut =πr2+πrs
= 3,14
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Jawaban:
no 14.
Luas Tabung = 2πr x (r+t)
= 2.22/7.14 x (14+20)
= 44.2 x 34
= 88.34
=2.992
Luas kerucut =πr2+πrs
= 3,14