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Sagot :
Answer:
x = -11°
Explanation:
The triangle given is right angle triangle which has 90°
The total interior angle of a triangle is 180°
Solve:
x + 31° + 90° + 70° = 180°
x + 191° = 180°
x = 180° - 191°
x = -11°
Therefore, the value of x is - 11 degrees.
Apply angle sum property
[tex]\\ \rm\hookrightarrow x+31+70+90=180[/tex]
[tex]\\ \rm\hookrightarrow x+101=90[/tex]
[tex]\\ \rm\hookrightarrow x=90-101[/tex]
[tex]\\ \rm\hookrightarrow x=-11[/tex]
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