Question

in triangle ABC two angles are 40 degree and 12 degree respectively find the third angle?​

Answer 1

Answer:

Let xx be the third (unknown) angle of given triangle with two known angles 30∘30∘ & 80∘80∘

Since, the sum of all interior angles in a triangle is 180∘180∘ hence we have

x+30∘+80∘=180∘x+30∘+80∘=180∘

x+110∘=180∘x+110∘=180∘

x=180∘−110∘x=180∘−110∘

x=70∘

Answer 2

Answer:

It's right mate which is written above.... xd.... ☺☺☺...