Question

If the height of the cone is 12 cm and diameter 7 cm, its volume is __________ cm3​

Answer 1

Answer:

If the height of the cone is 12 cm and diameter 7 cm, its volume is 154 cm³.

Step-by-step explanation:

Given,

 Height = 12 cm

 Diameter  = 7 cm

So,

Radius (r) = 7/2 cm

Volume of the cone =  ​ $\frac{1}{3}$ πr²h

                                ⇒ $\frac{1}{3}$ × $\frac{22}{7}$ × ($\frac{7}{2}$)² × 12

                                ⇒ 154 cm³

Answer 2

Step-by-step explanation:

Volume of cone = 1/3πr²h

height= 12cm.

diameter=7cm

so radius = diameter/2

7/2

=3.5cm.

vol.= 1/3×22/7×3.5×3.5×12

= 22×0.5×3.5×4 (it come when we cut 12 from 3 and 3.5 from 7)

=88×0.5×3.5

=154.00cm³