Answer:
55, Acute angled scalene triangle
90, Right angled scalene triangle
105, Obtuse angled scalene triangle
Step-by-step explanation:
Let us learn the property of a triangle.
Let a triangle be .
Sum of all the three internal angles of a triangle is always equal to .
OR
Given that triangles have 2 angles. Let us suppose, the third angle be
1. Triangle 1: two angles are
All the angles are less than 90 and no two angles are equal so, it is acute angle scalene triangle. (No sides equal)
2. Triangle 1: two angles are
One angle is 90 and not two angles are equal so, right angled scalene triangle.(No sides equal)
3. Triangle 1: two angles are
One angle is more than 90 and not two angles are equal so, obtuse angled scalene triangle.(No sides equal)
So, the answers are:
55, Acute angled scalene triangle
90, Right angled scalene triangle
105, Obtuse angled scalene triangle