Hello aspirant,

No, we cannot have a triangle with all the three angles greater than 60 degree.

We know,

The summation of all angles of a triangle is 180°

hence,      60°+60°+60°= 180°        .....(1)

but if all angles are greater than 60°, ( suppose 61°)

then,         61°+ 61°+61°= 183°     ......(2)

(1) <(2)

hence, all the angles should be :

1. Either 60°

2. One right angle and two other angles measuring 45°

3. Angles measuring 30°, 60° and 90°.

Hope this helps,

All the Best!!