Respuesta :

Answer:

x=15

Step-by-step explanation:

It's right angle shown by orange color

If one side is 45, other side has to be 45 as well.

3x = 45

x = 45/3

x = 15

babytasmiya
we know that both angles combined make a 90 degree angle; to find x we set it up like this:
3x + 45 = 90
3x = 45
x = 15

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