إحداها

إحداها

"One of them."

Here, 'إحداها' is used to refer to one specific painting from a group of paintings.

أحببت جميع اللوحات في المعرض، ولكن إحداها شدت انتباهي بشكل خاص.

I loved all the paintings in the exhibition, but one of them caught my attention especially.

In this sentence, 'إحداها' denotes one option among several presented solutions.

قدمت لي ثلاث طرق لحل المشكلة، واخترت إحداها.

Three solutions to the problem were presented to me, and I chose one of them.

'إحداها' is used here to specify one notebook among multiple notebooks in the collection.

في المجموعة يوجد كراسات مختلفة، إحداها تحتوي على خرائط تعليمية.

In the collection, there are various notebooks, one of which contains educational maps.