Question

An engineering student has done a model conical using a cylinder gummed with two structures.
Diameter of this model is 4cm and the total height is 12cm. Height of each cone is 2cm. Find the
volume of air inside this model.​

Answer 1

Answer:

118.625

Step-by-step explanation:

volume of air inside= volume of two cones+volume of cylinder

Volume of cones:

radius=2

height=2

formula: 1/3*pie*r^2*h

volume of two cones=2(1/3*pie*2^2*2)

Volume of cylinder:

radius=2

height=8 (height of cyl=12- height of 2cones)

formula: base area*height OR pie*radius^2*height

volume of cylinder=pie*2^2*8

Total Volume=2(1/3*pie*2^2*2)+pie*2^2*8