Question

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

Explanation:

Step1: Check side - lengths

Two sides have length 5.09, so it is isosceles.

Step2: Check angles

All angles 30°, 50°, 80° are less than 90°, so it is acute.

Answer:

Isosceles Acute