Question

长方形ABCD中，△BEO的面积是1平方厘米，△ABO的面积是2平方厘米。求长方形ABCD的面积

长方形ABCD中，△BEO的面积是1平方厘米，△ABO的面积是2平方厘米。求长方形ABCD的面积

Answer 1

There are a great many hobbies to choose from. Some people enjoy collecting coins or stamps, others choose to spend their time on sports or music. I have many hobbies, but playing basketball is my favorite one. At weekends, we always build a team to play basketball against another one in our neighbourhood. The competitions brought us so much fun. I think playing basketball is a good way to build up one's body and relax oneself. But I will always remember that it's unwise to spend too much time playing.

Answer 2

12平方厘米

追问

能给一下明细吗，就是算这个的步骤

追答

设AB=a，则BE=6/a。由O作OM垂直BE于M，ON垂直AD于N，可知OM=a/3，则ON=2a/3，由BE/AD=OM/ON，则AD=12/a。长方形面积为AB*AD=a*(12/a)=12。

Answer 3

s=12

Answer 4

请问……没有图吗= =？E点在哪里？O点又在哪里？

追问

我发不了图啊，E点是连接长方形下面边上的一个点，连接左上角的A，O点是
连接BD的一条线与AE的交点，，长方形ABCD是逆时针排的

追答

再请问一下，这是什么级别的数学 小学？初中？高中？大学？= =

追问

小学五年级