Hey there, Lets solve this problem together.Â
You are given two lengths of a right angled triangle, so Pythagoras' theorem is the way to go.Â
In algebraic terms, a² + b² = c² where c is the hypotenuse while a and b are the legs of the triangle.Â
In a right angled triangle:
the square of the hypotenuse is equal to
the sum of the squares of the other two sides.
c² (the diagonal squared) = a² (one length squared) + b² (the other length squared) Â
leg a and b are both 3Â
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The opposite of ^2 is ^1/2 also known as the square root
c = sqrt(18)
Solved =Â câ4.24Â