一根木条长100厘米.一根长60厘米,把它们的一段重合依次放在同一条直线上,中点间的距离是多少?
人气:230 ℃ 时间:2020-02-06 03:25:25
解答
中点间的距离
=100/2-60/2
=20(厘米)还有一种可能呢?若是端点重合,只有一种情况;若不是端点重合,则无法确定。还有一种情况吧:两根木棒相连得80厘米的,只不过这里是顺次,是两种可能还是一种?那是阁下题意不明。 若是顺次相连,则距离=100/2+60/2=80
推荐
猜你喜欢
- I have just returned from a visit to my landlord--the solitary neighbour that I shall be troubled with.
- 一个圆柱形铁皮油桶中装满了汽油,如果将汽油倒出后3/10还剩下56升,油桶的高是8dm,它的占地面积是多少平
- she worked in the field是什么意思
- 猜谜:If you don't want to cook meals,you can go to this place to eat things.
- Through listening,reading,role play and making dialogues,students can listen,read and act out t
- 美好的回忆作文500字
- please fill in the form,(giving) your name,address,phone number and ID number为什么用giving
- 英语演讲小短文(2~3分钟)急!~