GildaBuczkowski664 GildaBuczkowski664
  • 21-07-2014
  • Mathematics
contestada

A cylinder has a radius of 30 ft and a height of 19 ft. What is the exact surface area of the cylinder?

Respuesta :

konrad509
konrad509 konrad509
  • 21-07-2014
[tex]A=2\pi r(r+h)\\ A=2\pi\cdot30\cdot(30+19)\\ A=60\pi\cdot49\\ A=2940\pi\hbox{ ft}^2[/tex]
Answer Link
iloveonedirection
iloveonedirection iloveonedirection
  • 21-07-2014
[tex]SA=2(pi)rh+2(pi)r^2[/tex]

[tex]SA=2(pi)(30)(19)+2(pi)(30^2)[/tex]

[tex]SA=2(pi)(30)(19)+2(pi)(900)[/tex]

[tex]SA=3581.3+5654.7[/tex]

[tex]SA=9236[/tex]

9236 square feet
Answer Link

Otras preguntas

PLZ HELP A farmer has a total of 168 cows and horses. The farmer has five times as many cows as horses. How many of each animal does the farmer have?
Find the value of 5.2^2
I'm supposed to be writing a short young adult novel for English class. Can someone please critique my story so far and tell me what I must do to make it better
What was the effect of the Supreme Court’s decision in the case of Lochner v. New York?
What is the purpose of Philip k dicks short story the gun ?
"Lot's Wife" by Anna Akhmatova translated by Max Hayward and Stanley Kunitz And the just man trailed God's shining agent, over a black mountain, in his giant
What happened after communist party dissolved in Hungary?
Is 10/25 equivalent to 2/5
Fossils allow scientists to predict which species will become extinct in the future. True or False
What is the constant variation?