Respuesta :

15 . i think tight angle triangle

18. isosceles

Answer:

13) Scalene

14) Iscosceles

15) Right

16) Scalene

17) Iscosceles

18) Right

Pretty simple explanations:

Iscosceles: 2 sides equal 1 side not, 2 angles congruent

Scalene: all sides and angles not congruent

Right: has a right angle in its legs

Consider Brainliest! Hope I helped!