Question

the thickness of hollow cylinder is 1 cm it is 7 cm long and its inner radius is 3 cm find the volume wood required to make the cylinder​

Answer 1

Step-by-step explanation:

ANSWER

Thickness of Wooden Cylinder (t)=2 cm

Height of Cylinder (h)=7 cm

Inner radius (r)=3 cm

Outer radius (R) =r+t=3+2=5 cm

Volume of Wood Required = Outer Volume of Cylinder - Inner Volume of Cylinder

=> (π×R

2

×h)−(π×r

2

×h)=π×h(R

2

−r

2

)

=> 21×7×(196−144)=21×7×52=5720cm

3

=> VolumeofWoodRequired=5720cm

3

Answer 2

Answer:

154piecm³. this is the answer