Question

Pnjng jri2 alas sebuah kerucut 5cm dan panjang garis pelukis 13cm.maka volumenya adalah....(π = 3,14)

Answer 1

R = 5 cm
s = 13 cm
t^2 = 13^2 - 5^2
t^2 = 169 -25
t^2 = 
t = 12 cm
v = 1/3 x  x r^2 x t
v = 1/3 x 3,14 x 5^2 x 12
v = 314 cm^3 

Answer 2

T = 12 cm
L = 1/3 . 3,14 . 5 . 5 . 12
= 314 cm2