Question

class 9 cbse
chapter 6 lines and angles
please give me answer.​

Answer 1

Answer:

If the angles are in the ratio 5:3:7, then the triangle is. Let angles of a triangle be ∠A,∠Band∠C. Since, all angles are less then 90∘, hence the triangle is an acute angled triangle .

Answer 2

a) as the angles come out to be 60, 48, 72.