Question

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

Explanation:

Step1: Check side lengths

Two sides ($JK = 4.03$ and $IK = 4.03$) are equal. So it is isosceles.

Step2: Check angles

All angles ($50^{\circ},50^{\circ},80^{\circ}$) are acute (less than $90^{\circ}$).

Answer:

Isosceles Acute