can someone help me please

Given:
Base of the triangle = 4
Height of the triangle = x
Hypotenuse of the triangle = x
To find:
The value of x.
Solution:
The given triangle is a right triangle.
Using Pythagoras theorem:
[tex]\text{Base}^2+\text{Height}^2=\text{Hypotenuse}^2[/tex]
[tex]{4}^2+{x}^2={5}^2[/tex]
[tex]16+{x}^2=25[/tex]
Subtract 16 from both sides.
[tex]16+{x}^2-16=25-16[/tex]
[tex]{x}^2=9[/tex]
Taking square root on both sides.
[tex]\sqrt{{x}^2}=\sqrt{9}[/tex]
[tex]x=3[/tex]
The value of x is 3.