Question

Two angle of triangle measures are 30 degree and 40 degree then the find the third angle of triangle

Answer 1

Answer:

110

Step-by-step explanation:

angle sum property of triangle= 1+2+3=180

30°+40°+X= 180

X+70°=180°

x°=180-70

x°=110°

Answer 2

Answer:

Let x be the third (unknown) angle of given triangle with two known angles 30∘ & 40∘

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

x+30∘+40∘=180∘

x+70∘=180∘

x=180∘−70∘

x=110∘