เรขาคณิต, คณิตศาสตร์, ลูกบาศก์, hexahedron, ร่างกาย, แกนหมุน, แกน, ปริมาณ, พื้นผิว, เส้นทแยงมุมอวกาศ, โรงเรียน
Public Domain
ภาพถ่ายปลอดค่าลิขสิทธิ์ที่เกี่ยวข้อง
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