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Sagot :
Answer:
value of missing angle is..57°
Step-by-step explanation:
mark me brainliest
given:
54° and 69°
to find:
the missing angle of the triangle.
solution:
let's consider the missing angle as n.
sum of interior angle of triangle= 180°
n+54°+69°= 180° (adding up to sum of interior angle of triangle)
n+123°= 180°
n= 180°-123°
n= 57°
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