Question

The circumference of the 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 1.5 metre.​

Answer 1

≡QUESTION≡

The circumference of the 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 1.5 meter.​

                                                         

║⊕ANSWER⊕║

Circumference = 132 cm .

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