Question

In Triagle angle abc if angle a =65 degree , angle b=40 degree the find measure of angle angle c

Answer 1

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Answer 2

$angle \: a + angle \: b + angle \: c = 180 \\ 65 + 40 + c = 180 \\ 105 + c = 180 \\ c = 180 - 105 \\ c = 75 \\ angle \: c = 75$