ciarakelly245 ciarakelly245

25-01-2018
Mathematics

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Please help me answer question 4 in the photo.

Must show step by step guide to how you got your answers☺

Please help me answer question 4 in the photo Must show step by step guide to how you got your answers class=

Respuesta :

25-01-2018

volume of a right circular cone :
V = πr²(h/3)
given the height, h = 30 and volume, V = 360π

360π = πr²(30/3)

the π cancel out, 30/3 becomes 10

360 = 10r²

divide by 10 on both sides.

36 = r²

take the square root

r = 6 cm

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