The trunk of a tree os cylindrical and its circumference is 176 cm. If

1.	The trunk of a tree os cylindrical and its circumference is 176 cm. If the length of the trunk is 3 m. Find the volume of the timber that can be obtained from the trunk.
Answer» Given, Circumference of cylindrical tank = 176 cm Length of tank = 3m = 300 cm = 2πr = 176 = r = \(\cfrac{176\times7}{22\times2}\) = 28 cm ∴ volume of timber = πr²h = \(\cfrac{22}7\times\) 28 \(\times\) 28 \(\times\) 300 = 739200 cm³ ^{\(=\cfrac{739200}{1000000}\)}= 0.74 m³

The trunk of a tree os cylindrical and its circumference is 176 cm. If the length of the trunk is 3 m. Find the volume of the timber that can be obtained from the trunk.

Answer»

Given,

Circumference of cylindrical tank = 176 cm

Length of tank = 3m = 300 cm

= 2πr = 176 = r = \(\cfrac{176\times7}{22\times2}\) = 28 cm

∴ volume of timber = πr²h = \(\cfrac{22}7\times\) 28 \(\times\) 28 \(\times\) 300

= 739200 cm³

^{\(=\cfrac{739200}{1000000}\)}= 0.74 m³