Answer:
Explanation:
1) Acute triangle... all angles are acute (less than 90) angles
2) Right triangle... one corner of the triangle is 90 degrees (right angle), forcing the triangle to be a right triangle
3) Obtuse... one corner of the triangle is obtuse (greater than 90), forcing the triangle to be an obtuse triangle
4) Right triangle... one corner of the triangle is 90 degrees (right angle), forcing the triangle to be a right triangle