In a right angled triangle two angles other than right angle are (x+15) and (129-2x)then the smallest angle of the triangle will be? pls I need help
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Answer:
sum of the angles of a triangle=180°
let the unknown angle be x.
(x+15)+(129-2x)+x=180°
144°+-4x=180°
-4x=180°-144°
-4x=36°
-x=36°/4
=9°
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