Which of these could be lengths of sides of a triangle? A. 5, 7/3, 2.5
B. 1, 2, 3
O C. 4, 4,4
D. 22. 32.42
E. 3, 6, 9

C. 4, 4, 4

Explanation:

A triangle can be defined as a regular polygon that has three (3) angles and three (3) sides.

In Mathematics, there are three (3) main types of triangle of triangles based on the measure of angle and the length of the sides.

Based on the angle, these are;

I. Right angle triangle: it has an interior angle that is equal to 90°.

II. Obtuse triangle: its interior angle is greater than 90°.

III. Acute triangle: its interior angle is less than 90°.

Based on the length of the sides, these are;

I. Isosceles triangle: none of the sides are the same in length e.g 4, 8, and 6.

II. Scalene triangle: it has two sides that are equal in length e.g 4, 4, and 5.

III. Equilateral triangle: it has all three sides equal in length such as 4, 4, and 4.

Hence, the option which is considered to be a triangle is "Option C" with all three (3) sides equal in length.