Question

Find r. V = 1728π cm3

Answer 1

V = \[\frac{\pi r^2 h }{3}\]

Answer 2

\[r^2 = \frac{3V}{\pi h }\]

Answer 3

\[r = + \sqrt{\frac{3V}{\pi h} } \]

we take positive case because you cant have negative length

Answer 4

h= 36 from the picture

Answer 5

subing in

r=\[\sqrt{\frac{3 \times 1728}{36}}\]

Answer 6

r=12

Answer 7

12cm to include units