等边三角形又叫做______,三个角的度数都是______.
因为180°÷3=60°,
所以等边三角形的三个内角都是60度,也叫正三角形;
故答案为:正三角形、60°.
补全对话
Tony: Hi, Jack. You weren't at school last week. Where_ 1 _ you?
Jack: I was back to my hometown.I was born there.
Tony: Really?__2 _ is your hometown?
Jack: New York.I lived__3 before I was ten.
Tony: Was it__4 _ __5_ here?
Jack: No,it _6_ only 4 hours by train.
Tony: Do you have any__7_ there?
Jack: Yes, Tom and Mary. They are my__8 _ friends in the primary school.
Tony: I hope I will visit your __9_ one day.
Jack: You are 10_ at any time.
当控制项不满足要求时,单位工程绿色施工等级为合格。()