A rectangle with a lenght 60 and width 45 can be divided(分)into 2700 squanes with a side length of 1
题目
A rectangle with a lenght 60 and width 45 can be divided(分)into 2700 squanes with a side length of 1.If you draw a diagonal(对角线) of the rectangle,how the rectangle,how many squares does the diagonal go through?
图:
答案
先画一个4*3的,画一下对角线,然后等比例放大15倍就好
举一反三
已知函数f(x)=x,g(x)=alnx,a∈R.若曲线y=f(x)与曲线y=g(x)相交,且在交点处有相同的切线,求a的值和该切线方程.
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
最新试题
热门考点