Question

find the measure of the third angle of triangle whose two angles are given below 1)40degree,80degree.

Answer 1

we know that , the sum of triangle is 180°
so,
40+80+x=180
120+x=180
x= 180-120(transposing +120)
x=60°
therefore,third angle is 60°

Answer 2

❤❤Here is your answer ✌ ✌


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we know that sum of triangle is 180°↩

Let's third angle be x


Now

➡40°+80°+X=180°
➡120°+X=180°
➡X=180°-120°
➡X=60°

so third angle is x=60°