Question

Which is the largest side of the triangle abc if angle a=50degree and angle b=60degree?

Answer 1

let the remaining angle be x
then,
a+b+x=180
a+b=50degree + 60degree
50+60+x=180deg. (angle sum property of triangle)
x=180-110
x=70
therefore the third angle (x) is largest angle of that triangle.
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