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garis pelukis (s) = 2 √3
r : t = 2 : 3 (untuk mencari nilai sebenarnya, kita umpamakan dengan menambah koefisien x)
garis pelukis (s) = r^2 + t^2
(2 √3)^2 = (2x)^2 + (3x)^2
4 x 13 = 4x^2 + 9x^2
52 = 13x^2
x^2 = 52 : 13
x^2 = 4
x = √4 = 2
r = 2x = 2 . 2 = 4
t = 3x = 3 . 2 = 6
masukkan ke rumus volume :
V = 1/3 πr^2 t
V = 1/3 . 4^2 . 6 . π
V = 32 π , jadi volume kerucut sama adalah =>>> 32π (C)
semoga membantu dan tolong sambil dikoreksi lagi kalau ada kesalahan ^^