First day at school, the teacher suggested that it would be a good idea for each child to meet every other child in the class. The teacher said, "When you meet, please shake hands and introduce yourself by name."
If there were 11 children in the class, how many total handshakes were there?
السؤال
اليوم الأول في
المدرسة, المعلمة طلبت من كل تلميذ أن يصافح كل زملائه في الصف
