In the following question, the first and the last parts of the sentence/passage are numbered 1 and 6. The rest of the sentence/passage is split into four parts - P, Q, R, and S. These four parts are not given in their proper order. Read the sentence/passage and find the most logical order of the parts between 1 and 6.
1. A triangle has three sides. P: The angles can be equal or different. Q: It is one of the basic shapes. R: Every triangle has three angles. S: The sum of angles is always 180 degrees. 6. Triangles are important in geometry.

Correct option is D

Option (d) is the correct order of the given sentences: QRPS.
· Link of pronoun: After (1) “A triangle…”, Q (“ It is one of the basic shapes.”) rightly uses It to refer back to triangle.
· General to specific: R states a universal property (“Every triangle has three angles.”) before we discuss types of angles.
· Detailing property: P narrows down to variability (“angles can be equal or different”), which naturally follows R.
· Rule statement: S gives the fundamental rule (“sum of angles is 180°”), a fitting final fact before the closing sentence (6).
· Thus the flow is: 1 → Q → R → P → S → 6.