Question

the volume of 35 m long cylinderical iron rod is 110 m^3. find its diameter

please tell

Answer 1

Answer:

2cm

Step-by-step explanation:

volume = π × $r^{2}$×h

     110  = $\frac{22}{7}$×$r^{2}$×35

     110  = 110×$r^{2}$

     $\frac{110}{110}$= $r^{2}$

     1      =   $r^{2}$

     $\sqrt{1}$ = r

     1      = r

diametre = 1 × 2

               = 2 cm

Answer 2

The diameter is 1 meter.

Step-by-step explanation:

Given : The volume of 35 m long cylindrical iron rod is 110 m³.

To find : Its diameter  ?

Solution :

The volume of cylindrical iron rod is V=110 m³.

The height of the iron rod is h=35 m.

The volume of the cylinder is $V=\pi r^2 h$

$110=\frac{22}{7}\times r^2\times 35$

$r^2=\frac{110\times 7}{22\times 35}$

$r^2=1$

$r=1$

The diameter is d=2r

i.e. $d=2(1)=2$

Therefore, the diameter is 1 meter.

#Learn more

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