Question

Pls solve and I will mark u brainiest and please no spam!!

Answer 1

Answer: Here, ∠A= 80°.

And I am not able to do other ones. Sorry!!

A Step-by-step explanation of(i):

As we know, Triangle ABC: ∠A+∠B+∠C= 180°(Angle sum property of a triangle)

So, ∠A+60°+40°=180°

     ∠A+100°=180°

     ∠A=180°-100°=80°

Thus; ∠A=80°