Question

the height of a right circular cone whose volume is 154 cu. cm and the diameter of the base is 7 cm is equal to​

Answer 1

Step-by-step explanation:

diameter = 2× radius

so here find radius diameter is given

radius = 2÷ diameter

so according to this the radius is 4.5 cm

Answer 2

Given :

⬤ Volume of Right Circular Cone is 154 cm³ .

⬤ Diameter of the Base is 7 cm .

To Find :

⬤ Height ot Right Circular Cone.

Formula Used :

$\sf[\:{Volume=\dfrac{1}{3}\pi{r}^{2}h}\:]$

Solution :

• Diameter = 7
• Radius = 7/2

According to the Formula :

154 = ⅓πr²h

154 = 1/3 × 22/7 × 7/2 × 7/2 × h

154/1 = 77/6 h

By Cross Multiplication :

154(6) = 77h

924 = 77h

924/77 = h

12 = h

Therefore , The Height of the Right Circular Cone is 12 cm .