为什么抛物线内接三角形的垂心是焦点时三角形内切一个定圆? 知乎 Template




You need a modern browser try chrome, to view this.

Background image: Hide Show

View Larger Image Image Credit: zhihu.com






Try and sketch some of theseSilverware, Rug, Sea cucumber, Campers, Seal, Island, Chair, Breadbox, Chamber pot, Gate, view more ideas


please wait, the page is loading...

More Sketches

Take a peek at some of the sketches created by our users, are you a sketchite?

anonymous
anonymous
sketch #314 Butterfly


anonymous
anonymous
sketch #4566 Edward Scissorhands by Angel Ördoñez


Saifa Mahmud
sketch #1670


anonymous
anonymous
sketch #2926 Power Puff Girls by Sylvie Rieux


anonymous
anonymous
sketch #5211


Saifa Mahmud
sketch #1671


anonymous
anonymous
sketch #5103


anonymous
anonymous
sketch #20840 Dog by Laur Ūūtiis


anonymous
anonymous
sketch #5086 Lion by Z Ionut Ady


anonymous
anonymous
sketch #4937 Favorite animal competition runner-up: White Tiger by Deepak Kaushik


anonymous
anonymous
sketch #2889


anonymous
anonymous
sketch #4429 Spongebob by Brenda Peña


anonymous
anonymous
sketch #3425 &#;Tonari no Kaibutsu-kun&#; by Betty Marie Melzer


anonymous
anonymous
sketch #4388 Homer and the Cherry


anonymous
anonymous
sketch #4093 freefree


anonymous
anonymous
sketch #4511 Yao Ming by Betty Marie Melzer


anonymous
anonymous
sketch #2117


anonymous
anonymous
sketch #2877 Elvis by Karoline Castillo


Loai Issa
sketch #2668 Butterfly by Loai Issa


anonymous
anonymous
sketch #4907


sketchmaster
sketch #2464 Spongebob by sketchmaster


Lucy Barnard
sketch #249 Rocket


anonymous
anonymous
sketch #4053


anonymous
anonymous
sketch #4555 Mario by Alexander Volodimirovich Danilchenko


anonymous
anonymous
sketch #5090


anonymous
anonymous
sketch #953

tomski为什么抛物线内接三角形的垂心是焦点时三角形内切一个定圆? 知乎 coloring