A triangle is a polygon with three edges and three vertices. It is one of the basic shapes in geometry. A triangle has three sides, three vertices, and three angles. The sum of the three interior angles of a triangle is always 180°. The sum of the length of two sides of a triangle is always greater than the length of the third side. A triangle with vertices P, Q, and R is denoted as △PQR.
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Rules: Enter initials of type of triangle in small letters like "o" for obtuse against the given angles.
1. 55°,65°,60° :
2. 90°,35°,55° :
3. 97°,35°,48° :
4. 24°,85°,71° :
Rules: Enter initials of type of triangle in small letters like "e" for Equilateral against the given angles.
1. 55°,70°,55° :
2. 60°,60°,60° :
3. 97°,35°,48° :
4. 70°,70°,40° :