A triangle has side lengths of 11 meters, 12 meters, and 15 meters. What kind of triangle is it?

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Step 1: Note down the given measurements
Step 2: Recall the classification of triangles bu their sides.
NOTE: Classify triangles by their sides only (equilateral, isosceles, scalene)
Step 2: Compare the lengths of the sides
NOTE: Equilateral triangle: A triangle with all three sides equal in measure.
Isosceles triangle: A triangle in which at least two sides have equal measure
Scalene triangle: A triangle with all three sides of different measures
Step 4: Identify type of the triangle
EXAMPLE: The given triangle has three unequal side so, it is a Scalene triangle