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F<sub>Horizontal</sub> = 8N right
Since there are two [[Resultant Force|resultant forces]] that are [[perpendicular]] they form a [[Right Angle Triangle|right angle triangle]] and their [[hypotenuse]] is the [[magnitude]] of the [[Resultant Force|resultant force]]. This can be found using [[Pythagoras' Theorem]].
<math>{F_R}^2 = {F_V}^2 + {F_H}^2</math>