Question

calcule a area lateral, a area da base, a area total e o volume do cilindro abaixo. Use =3,14. raio 5cm e altura 12cm

Answer 1

Area lateral ====>

Al = 2 x pi x r x h
Al = 2 x pi x 5 x 12
Al = 2 x pi x 60
Al = pi x 60x 2
Al = pi x120
Al = 3,14 x 120
Al = 376,80 cm^2

Area da base ===>

Ab = pi x r^2
Ab = pi x (5)^2
Ab = pi x 25
Ab = 3,14 x 25
Ab = 78,50 cm^2

Area total =====>

At = 2 x pi x r x (h + r)
At = 2 x pi x 5 x ( 12 + 5 )
At = pi x 2 x 5 x (17)
At = pi x 10 x 17
At = pi x 170
At = 3,14 x 170
At = 533,80 cm^2

Volume =====>

V = pi x r^2 x h
V = pi x (5)^2 x 12
V = pi x 25 x 12
V = pi x 300
V = 3,14 x 300
V = 942 cm^3