books rollo triangle
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Source: wikipedia.org
مثلث رولو (Info)
مثلث رولو (بالإنجليزية: Reuleaux polygon) هو منحني ذو عرض ثابت بحيث أنه منحني تكون جميع أطوال أقطاره بأطوال متساوية. سمي هذا المثلث على اسم المهندس الألماني فرانس رولو (بالإنجليزية: Franz Reuleaux) الذي عمل على الآلات التي تنقل الحركة من نوع لآخر.
