# volume of the concrete

A section of road follows a circular arc with a central angle of 23.8. The radius of the inside of the curve is 281.0 m, and the road is 15.4 m wide. What is the volume of the concrete in the road if it is 0.305 m thick?

The volume of the concrete used for the section of road is ___ m^3.

Round to five decimal places.

https://brainmass.com/math/geometry-and-topology/calculating-volume-concrete-road-461230

#### Solution Preview

The area of a sector of a circle is 1/2 * r ^ 2 * theta, where r is the radius of the circle and theta is the angle.

then the area of a section of a donut shape (such as that ...

#### Solution Summary

It shows how to find the volume of the concrete in a road that follows a circular arc.

$2.19