Question

the circumference of a trunk of a tree cylindrical in shape is 132 cm. find the volume of timber that can be obtained from a trunk,if the length of the trunk is 1.5m​

Answer 1

Answer:

=207900 cm³

Step-by-step explanation:

as unit of circumference can't be squared, so considering circumference = 132 cm .

now, circumference = 2π r = 132

                                ⇒ r= 66/π

                                ⇒r = 21 cm

length of trunk, h = 1.5 m = 1.5 ×100 = 150 cm

volume of timber = π r² h

                           = (22/7) ×(21)²×150

                           =207900 cm³

Answer 2

Answer:

Circumference= 132 cm..

2*22/7*r=132

r= 132*7 / 2*22

r = 21 cm is the radius

so, volume = pie* r*r* h

22/7*21*21*150

=207,900 cm cube.

or 20.79 m cube