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

Please help on this one?
What are the inputs and outputs of cellular respiration and photosynthesis? water energy sugar oxygen carbon dioxide
I’m doing a project in school on liquids and gasses and I wanted to know if air conditioning is a gas?
How can you convert 2.5 meters to decimeters to determine whether the board is wide enough?
Help math questions.20 points solve for xPlease show work if possible.
EASY QUESTION POINT!! Find the missing values. If not whole number, then round to two decimal places..
A horse continues to apply a force in order to move a cart with a constant velocity. Explain.
Once it becomes effective, a product mix for a given product remains effective for a long time. a. true b. false
How do I solve this problem?
Why is the term "native americans" rejected by some historians and anthropologists?