Kerucut mempunyai luas alas 154cm2tinggi 9cm volume

Luas Alas : πr²

=> 154 = πr²

=> 154 = 22/7 × r²

=> 154 × 7 / 22 = r²

=> r² = 49

=> r = 7 cm

Volume : 1/3 × πr² × t

=> 1/3 × 22/7 × 7² × 9

=> 1/3 × 154 × 9

=> 154 × 3

=> 462 cm³

Jawaban:

Volume Kerucut =

Luas Alas = Lingkaran

154 = √(154 x 7 : 22)

r = √49

r = 7

Cara Biasa:

V = 1/3 x π x r x r x T

V = 1/3 x 22/7 x 7 x 7 x 9

V = 1/3 x 1386

V = 462 Cm³

Bisa Juga

Cara Simpel:

V = 1/3 x L.alas x T

V = 1/3 x 154 x 9

V = 1/3 x 1386

V = 462 Cm³

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