A wedge is a simple tool in the shape of a triangle. In other words, a wedge is simply two inclined planes back to back. Figure 1 shows the simple formulas for calculating the *IMA*s of these machines. The mechanical advantage formula for a wedge is dependent on its geometry:

`MA of a wedge = L / t`

Wedge can be used to split an object into two parts or to lift heavy objects. Knives and axe heads are examples of wedges.

**Related Study**

**MA of Lever ****MA of wedge – you are hereMA of an inclined planeMA of wheel and axle**

How to Calculate the Mechanical Advantage of a Wedge – formula