Question

I need help on this and the person who answer this correctly gets a BRANILIST​

Answer 1

sum of interior angle of triangle is 180°

therefore, 81°+37°+X=180°

118°+X =180°

X=180°-118°

X=62°

k+x=180°

k+62°=180°

k=180°-62°

k=118°

hence proved

OR

the sum of 2 interior angle is equal to a exterior angle,so 81°+37°=k

118°=k

Hope it will help you.