Question

a triangle has side lengths of 16 centimeters, 8 centimeters, and 18 centimeters. what kind of triangle is it?
equilateral
isosceles but not equilateral
scalene

Explanation:

Step1: Recall definitions

• Equilateral triangle: all sides equal.
• Isosceles triangle: at least two sides equal.
• Scalene triangle: all sides different.

Step2: Compare side lengths

Given sides \(16\), \(8\), \(18\).
\(16
eq8\), \(8
eq18\), \(16
eq18\).

Answer:

scalene