Respuesta :

We are given a right angle.

Two of the sides are 5sqrt(2)cm and 3cm.

We need to find the length of third side x.

We know, we can apply Pythagoras Theorem for a right triangle.

(a)^2 +(b)^2 =(c)^2.

Where, a and d b are two smaller sides of the right triangle and c is the longest side (Hypotenuse) of the right triangle.

Plugging values in above formula, we get

(x)^2 +(3)^2 =  [tex](5\sqrt{2})^2[/tex]

x^2 +9 = 25*2

x^2+9 =50

Subtracting 9 from both sides, we get

x^2+9-9 =50-9

x^2 = 41.

Taking square root on both sides, we get

[tex]\sqrt{(x)^2}=\sqrt{41}[/tex]

[tex]\sqrt{41}[/tex] can't be simplify more.

Therefore, final answer is x= [tex]\sqrt{41}[/tex] cm.