azareyaaa1
azareyaaa1
08-06-2021
Mathematics
contestada
what is the value of x.
Respuesta :
xGavin
xGavin
08-06-2021
Answer: x=45
(3x-9)+30+24=180
3x-9+54=180
3x+45=180
-45 -45
3x=135
x=45
Explanation: All interior angles of a triangle add up to 180°. Add all interior angles and set it up equal to 180°. Then solve for x.
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