ayushchaudharytharu1
ayushchaudharytharu1 ayushchaudharytharu1
  • 04-08-2021
  • Mathematics
contestada

Cyruer.
Pucic Or the
(a) The surface area and volume of a sphere are in the ratio of 3 : 7
cm. What is the circumference
of its great circle and volume ? Find it.​

Respuesta :

caylus
caylus caylus
  • 04-08-2021

Answer:

Hello,

Step-by-step explanation:

Area of the sphere:

[tex]S=4*\pi *r^2[/tex]

Volume of the sphere:

[tex]V=\dfrac{4*\pi *r^3}{3}[/tex]

[tex]\dfrac{S}{3} =\dfrac{V}{7} \\\\\dfrac{4*\pi *r^2}{3} =\dfrac{4*\pi *r^3}{3*7} \\\\1=\dfrac{r}{7} \\\\\\r=7\\\\great \ circle: 2*\pi* r=14*\pi\\[/tex]

[tex]Volume=\dfrac{4*\pi *7^3}{3} =\dfrac{1372*\pi }{3} \approx{1436,7550...(cm^3)}[/tex]

Answer Link

Otras preguntas

!!!URGENT!!! Read Image Below.
A toy company spends $1900 for factory expenses plus $11 per toy truck (t) to make each toy truck. The trucks (t) sell for $30 each. What is the equation in ter
Please help this is my last question and I can't get it wrong or else I will literally rage at IXL.
help solve this please
If the bird is directly above the fish how far apart are they
Fe(OH)2 Spell out the full name of the compound.
22. we bought a new cell phone. a. Bought b. We c. New Cell Phone
Which best explains why floodplains encouraged settlement in the Fertile Crescent? The floodplains prevented seasonal droughts. The floodplains brought warmer t
When you walk up to any substance, you can categorize the substance as a solid, liquid, or gas. You could further categorize the substance as being a pure subst
what was gibbons decision