Geometry

Question Analysis:
This question involves both angle and side classification.
The main focus is on identifying if the triangle is scalene, isosceles, or equilateral, while also determining if it is acute, right, or obtuse.

Key Concept Explanation:
Scalene Triangle: Has all different sides.
Isosceles Triangle: Has at least two equal sides.
Equilateral Triangle: Has all three equal sides.
Obtuse Triangle: Has one angle greater than 90°.
Right Triangle: Has one 90° angle.

Step-by-Step Solution:
Identify the given properties:
One angle is greater than 90° → Obtuse Triangle.
All three sides are different → Scalene Triangle.
Since the triangle is both scalene and obtuse, it is classified as an Obtuse Scalene Triangle.

Option Analysis:
A (Incorrect): The triangle is not right (does not have a 90° angle).
B (Incorrect): The triangle has all different sides, so it cannot be equilateral.
C (Incorrect): The triangle has no equal sides, so it ca...