Question

2. Find the volume of a cone, if the radius of its base is 1.5 cm ad its perpendicular height
is 5 cm.
AP
BP​

Answer 1

Step-by-step explanation:

Volume of cone =

3

−1

πr

2

h

=

3

1

×

7

22

×1.5×1.5×5

v=11.78097cm

3

Answer 2

Answer:

$\bigstar{\bold{Volume\:of\:cone=11.775\:cm^{3} }}$

Step-by-step explanation:

$\Large{\underline{\underline{\bf{Given:}}}}$

• Radius (r) = 1.5 cm
• Height (h) = 5 cm

$\Large{\underline{\underline{\bf{To\:Find:}}}}$

• Volume of the cone

$\Large{\underline{\underline{\bf{Solution:}}}}$

→ Given the radius and height, we have to find the volume of the cone

→ Volume of the cone is given by the equation,

  Volume = 1/3 × π × r² × h

→ Substituting the datas we get,

  Volume of the cone = 1/3 × 3.14 × 1.5 × 1.5 × 5

  Volume of the cone = 1/3 × 35.325

  Volume of the cone = 11.775 cm³

→ Hence volume of the cone is 11.775 cm³

$\boxed{\bold{Volume\:of\:cone=11.775\:cm^{3} }}$

$\Large{\underline{\underline{\bf{Notes:}}}}$

→ The lateral surface area of a cone is given by

   LSA of a cone = π r l

→ The total surface area of a cone is given by

   TSA of a cone = π r (r + l)

→ Volume of a cone is given by

  Volume of cone = 1/3 × π × r² × h