Question

The volume of a circular rod of length 1 m is 3850 cm cube. Find its radius

Answer 1

Answer:

Step-by-step explanation:

1 m =100 cm

vol. of cylinder = $\pi r^2h$

3850= $\pi r^2*100$

385*7/220= r^2

7*7/4=r^2

√49/4=r

r=7/2 cm

r= 3.5 cm

Answer 2

height = 1m = 100 cm
volume = 3850 cm cube =
$\pi {r}^{2}h$

3850 = 22/7 * (r)sq * 100
3850 * 7/22 * 100 = (r) sq
12.25 = (r) sq
sq root of 12.25 = r
0.35 cm = r
Thus the radius = 0.35 cm