A light hardwood dowel has a semi-circular cross-section of radius $3 \mathrm{cm}$, and is $2 \mathrm{m}$ in length. Calculate the volume of wood in the dowel.

Find the measure of the central angle of the sector in the following circle in degrees.         [Enter the value to the nearest integer and excluding degree symbol]

Find the measure of the central angle of the sector in degrees in the following circle. [Enter the value to the nearest integer and excluding degree symbol]

Find the angle in the sector. [Enter the value excluding degree symbol]

Find the length of the $AB$. [Enter the value correct up to two decimal places and excluding units]

Find the measure of the central angle of the major sector in degrees. [Enter the value to the nearest integer and excluding degree symbol]

Find the length of the major arc.

Find the perimeter of the major sector.

Find the radius of the following circle. Give your answers to $3$ significant figures.