The length of AB in the given figure is 5 units.
It states that the sum of squares of base and perpendicular is equal to the length of hypotenuse in a right angle triangle.
Formula:
[tex]\sqrt{(base)^{2} + (perpendicular)^{2} } = Hypotenuse[/tex]
base = 3 units
perpendicular = 4 units
using Pythagoras theorem:
[tex]\sqrt{(3)^{2} + (4)^{2} } = 5[/tex]
Hence the final result, the length of AB is 5 units.
To learn more about Pythagoras theorem, refer to the link:
https://brainly.com/question/343682
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