in triangle abc angle a + Angle b= 144 degrees and angle b + angle c = 120 degrees, find angle a
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Answer:
60 degrees
Step-by-step explanation:
Sum of angles of a triangle is 180 degree.
Let us assume a+b+c=180
Given : b+c is 120 degree
So
a+120=180
> a=180-120
>a= 60 degree
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