Respuesta :

lucy1107

Answer: 353.25

Step-by-step explanation:

2πr^2+2πrh

2(3.14)(4.5)^2+2(3.14)(4.5)(8)

2(3.14)(20.25)+2(3.14)(36)

2(63.585)+2(113.04)

127.17+226.08

353.25

Answer:

353.43 meters squared

Step-by-step explanation:

Surface area = 2πr^2 +πdh

2·π·4.5^2 + π·(9) (8)

127.2345 + 226.1946

= 353.4291

Round to the nearest hundredth: 353.43 meters squared