Answer:
For the first triangle, x equals 22cm.
Here's how:-
x is the altitude or height of the triangle. To find it, we can use the Pythagoras theorem:-
[tex]altitude^{2} + base^{2} = hypotenuse^{2}[/tex]
The base is 120cm and the hypotenuse is 122cm
Putting this in the equation, we get:-
[tex]altitude^{2} + 120^{2} = 122^{2}[/tex]
[tex]altitude^{2} = 122^{2}- 120^{2}[/tex]
[tex]altitude^{2} = 14884 - 14400[/tex]
[tex]altitude^{2}[/tex] = 484
altitude = [tex]\sqrt{484}[/tex]
altitude = 22cm
So, x = 22cm
