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

What is the difference between preterite and imperfect and the past progressive and present progressive?
What is 36 percent as a decimal?
Which statement illustrates the distributive property? Please help
Which statement illustrates the distributive property? Please help
Pyrenees mountains border Spain and this European country starts with F
How do you think the world was created?
Pyrenees mountains border Spain and this European country starts with F
How do you think the world was created?
Which statement illustrates the distributive property? Please help
What is a major city in Alaska that starts with F