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Stok Fotoğraf - Handwritten on school blackboard definition of main mathematical constant the number PI It is the circumference of any circle, divided by its diameter

Handwritten on school blackboard definition of main mathematical constant the number PI It is the circumference of any circle, divided by its diameter
Görsel Kimliği : 15795772
Medya Türü : Stok Fotoğraf
Telif hakkı : yuriz
4928 x 3264 px | 16.43 " x 10.88 " | 300dpi | JPG
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