area

Find the area of a regular hexagon which has an apothem of 2 square root 3.

revolutions of a wheel

The radius of a wheel is 35 inchs. How far will the wheel travel in 15 revolutions?

volume of this solid

A cylinder of radius 9 has a hemisphere istting on top. The total height of this solid is 30. How do I find the volume of this solid?

area

In a circle, the arc of a chord is 2 pie square root 2. The radius of that circle is 3 square root 2. Find the area bounded by that chord and that arc.

volume of the spheres

240 spheres, each of radius 2, are placed in a box in 5 layers. There are 6 rows with 8 spheres in each row at each layer. The outside spheres are each tangent to the box and the spheres are tangent to those spheres next to them. Find the volume of the box which is between the spheres.