Question

when exterior angle is an acute angle, then each of interior opposite angle of a triangle is :

Answer 1

Answer:

Step-by-step explanation:

Acute angle only because sum of interior opposite angle = the exterior angle

Answer 2

Answer:

Acute Angle

Step-by-step explanation:

If one of the exterior angle is acute angle, then corresponding interior angle is obtuse angle. Consider ∠B as obtuse angle in ΔABC.

Now, Sum of angles of triangle is 180°.

If ∠B > 90°, then sum of ∠A and ∠C < 90°, hence individual angles ∠A and ∠C has to be < 90°.

So, the answer is:- when exterior angle is an acute angle, then each of interior opposite angle of a triangle is Acute angle.