Breakdown of sankakukin o tsukau.

Questions & Answers about sankakukin o tsukau.
It is read さんかくきん.
- 三角 = さんかく = triangle
- 巾 in this word is read きん
So the full word is さんかくきん.
三角巾 literally refers to a triangular cloth.
Depending on the situation, it can mean things like:
- a triangular bandage in first aid
- a headscarf or bandana
- a triangular cloth used in cooking or cleaning
So the exact English translation depends on context.
を marks the direct object of the verb.
In this sentence, 三角巾 is the thing being used, so を shows that it is the object of 使う.
So the structure is:
- 三角巾 = triangular bandage / triangular cloth
- を = object marker
- 使う = use