Question

what is the solution ?
Please answer quickly​

Answer 1

Answer:

if I was this good in geometry Why would I use this App

Answer 2

Answer:

Let ∠A<∠B+∠C. Then,

2∠A<∠A+∠B+∠C⇒2∠A<180 ⇒∠A<90

Similarly, we obtain ∠B<90 and ∠C<90

=> Each angle of the triangle is less than 90° and hence it is an acute-angled triangle.