Of all the triangles whose all sides are integers,how many triangles whose sides are 9 and 12?A.21 B.3 C.17 D无数

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Of all the triangles whose all sides are integers,how many triangles whose sides are 9 and 12?A.21 B.3 C.17 D无数

Of all the triangles whose all sides are integers,how many triangles whose sides are 9 and 12?A.21 B.3 C.17 D无数
Of all the triangles whose all sides are integers,how many triangles whose sides are 9 and 12?
A.21 B.3 C.17 D无数

Of all the triangles whose all sides are integers,how many triangles whose sides are 9 and 12?A.21 B.3 C.17 D无数
C
三角形两边之和大于大于第三边,两边之差小于第三边,所以第三条边的长度是4-20间的所有整数,共17个.

我是南京外国语学校仙林分校的,我加你为好友,以后聊聊学习,对了你是哪个学校的?
C
三角形两边之和比第三边大,两边之差比第个三边小,所以第三条边的长度是在4到20间的所有整数,共17个边。希望能采纳!我也是南外仙林分校的,我是六(8)的,你呢?...

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我是南京外国语学校仙林分校的,我加你为好友,以后聊聊学习,对了你是哪个学校的?
C
三角形两边之和比第三边大,两边之差比第个三边小,所以第三条边的长度是在4到20间的所有整数,共17个边。希望能采纳!

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20-4+1=17我是南外仙林分校的给我留个地址吧

选C,我是南外仙林分校的,你几班

Of all the triangles whose all sides are integers,how many triangles whose sides are 9 and 12?A.21 B.3 C.17 D无数 of all the triangkes whose all side are integers,how many triangles whose sides are 12 and ( )(1)21 (2)3 (3)17 (4)无数 how many times is their total area larger than that of the big square?抱歉 全题是:As is shown in the following tangram,add together the area of all the triangles,how many times is their total area larger than that of the big square?旁边有个 英语翻译Sorry Simone something came up and I could not get to skype sooner.I just want to explain to you that most if not all the parts of the pictures I made with circles and triangles ( the baby chick,the egg,the roosters,and the bunny )I'll ta Equilateral TrianglesYou are using a drawing program on a computer.You place several equilateral triangles of the same size on the screen.You observe that you can cover any of these triangles by moving the other triangles without rotating.What is the 求以下关于数学的句子的翻译!急!If the figure 6 is composed of 24 equilateral triangles, then how many non-congruent distinct right triangles with vertices on the intersecting points are possible in this figure? 英语翻译If the figure 6 is composed of 24 equilateral triangles,then how many non-congruent distinct right triangles with vertices on the intersecting points are possible in this figure?( )不要用软件翻译! All of the sudden all of the above all of the three all of the world. all of the trip All of the hypocrisy All of the Lights Draw three circles on the Draw four triangles on the 英语智力题,.Fred is making a collage(拼贴)of geometric shapes(几何图形).He has 4 more triangles than circles and twice as many squares as triangles.If Fred has 36 shapes in all,how many of each kind does he have?_________ 2.65536,256,16,__ Divide the following picture into eight equal triangles.翻译 how many triangles are there in the shape below?