Question

in triangle abc angle a =80 degree angle b=40 degree find angle c

Answer 1

Answer:

we Know that

the Sum of triangle three side = 180 degree

$a + b + c = 180 \\ 80 + 40 + c = 180 \\ 120 + c = 180 \\ c = 180 - 120 \\ c = 60 \: \: answer$

hence, angle c = 60 degree

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