sen(30) = 3/h'

h'/2 = 3

h' = 6

6² -3² = x²

√(36 -9) = x

3√3 = x

3√3/5 = 3/y

3y√3 = 15

y = 5√3/3

(h'')² = 5² +(5√3/3)²

h'' = √(25 +25/3)

h'' = √[4(25)/3]

h'' = 10/√3 * √3⁰

h'' = 10√3/3

V = h' +h''

= 10√3/3 +6

= (10√3 +18)/3

= 2(5√3 +9)/3 m