Question

The angles of a triangle are in the ratio 4:5:9. The triangle is
(a) an isosceles triangle
(b) an obtuse angled triangle
(c) an acute angled triangle (d) a right triangle​

Answer 1

First we find angles....

Answer is.all angles are less than 90 and equal.

hence, an acute angled triangle..

hope it will be help you

Answer 2

Answer:

It is a right angled triangle.

Step-by-step explanation:

Hope it helps you.....