chrisk7987 chrisk7987
  • 16-02-2019
  • Mathematics
contestada

PLEASE HELP FOR BRAINLIEST!!


The volume of a cylinder is 252π cm3 and its height is 7 cm.



36



80



16



6

Respuesta :

wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 16-02-2019

Answer:

r = 6cm

Step-by-step explanation:

The formula for volume of a cylinder is

V = pi r^2h

where r is the radius and h is the height

We know the volume and the height

252 pi = pi * r^2  *7

Divide each side by pi

252 pi/pi = pi/pi * r^2  *7

252 = r^2 *7

Divide each side by 7

252/7 = r^2 *7/7

36 = r^2

Take the square root of each side

sqrt(36) = sqrt(r^2)

6 = r

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