Answer:
5 ft
Step-by-step explanation:
Using Pythagoras's theorem
a^2 = b^2 + c^2 ; a = hypothenuse, b & c = length of the other sides
a^2 = (4)^2 + (3)^2
a^2 = 16 + 9
a^2 = 25
a = 5 ft
Note briefly: this formula can only be used with a right angle triangle.
