Question

Calcule o volume do tronco de cone​

Answer 1

Resposta:

h = altura

R= raio maior

r= raio menor

$v = \frac{\pi \: h}{3} .( {R}^{2} + Rr + {r}^{2} ) \\ v = \frac{4\pi}{3} .( {6}^{2} + 6.3 + {3}^{2} ) \\ v = \frac{4\pi}{3} (36 + 18 + 9) \\ v = \frac{63.4\pi}{3} \\ v = 21.4\pi \\ v = 84\pi \: cm$