Question

answer
scalene right
isosceles right
scalene acute
scalene obtuse
isosceles obtuse
equilateral
isosceles acute

Explanation:

Step1: Check side - length equality

All side - lengths are 7, so the triangle is equilateral or isosceles. Since all sides are equal, it is equilateral.

Step2: Check angle measures

All angles are 60°, which are acute angles. An equilateral triangle has all angles equal to 60°.

Answer:

Equilateral