An isosceles triangle has two equal sides. An equilateral triangle has three equal sides while a scalene triangle has neither of the three sides equal .
From the question, the triangle has sides 3 inch, 3 inch and 4 inch. Two sides are equal, so it’s an isosceles triangle
Since the triangle has equal sides it will carry onto it self at 120, since it can rotate 360 grades only and it has 3 sides so it will rotate in one third of 360 so 120
