Question

a triangle has two sides measuring 15 millimeters and one side measuring 17 millimeters. what kind of triangle is it?
equilateral
isosceles but not equilateral
scalene

Explanation:

Step1: Recall triangle definitions

An equilateral triangle has all three sides equal. An isosceles triangle has at least two sides equal. A scalene triangle has all sides of different lengths.

Step2: Analyze given side lengths

The triangle has two sides of length \(15\) mm and one side of length \(17\) mm. Since two sides are equal (\(15 = 15\)) and not all three (\(15
eq17\)), it meets the isosceles triangle definition but not the equilateral one.

Answer:

Isosceles but not equilateral