Classified Information
Triangles can be classified by their side lengths (scalene, isosceles, and equilateral), and by their angle measure (acute, right, and obtuse). However, not all combinations of these classifications exist.
Do each of the following triangles exist? If yes, draw the triangle accurately, with measurements. If no, explain why it cannot exist.
 a right isosceles triangle
 a right equilateral triangle
 a right scalene triangle
 an acute scalene triangle
 an acute isosceles triangle
 an acute equilateral triangle
 an obtuse scalene triangle
 an obtuse isosceles triangle
 an obtuse equilateral triangle
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