Engineers commonly cite the cross sectional area of a river.

A is the cross sectional area of the shaft.

This force will be equal to the pressure times the cross sectional area (A ) of the piston.

The material will tend to spread in the lateral direction and hence increase the cross sectional area.

Where stress is a force ( a vector property) divided by the cross sectional area.

Percussion welding is used on materials that have small cross sectional areas.

This type of welding is limited to the materials having the same cross sectional areas and geometries.

You can experience the dependence of resistance on cross- sectional area by holding a hand out through the window of a moving vehicle.

Scantling is a measurement of prescribed size, dimensions, or cross sectional areas.

One common rule is to provide vents in cross sectional area equal to 1/150 of the floor area served.