如何证明一个圆锥和圆柱的斜截面都是一个椭圆 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 theseTeepee, Tsunami, Dresser, Mustard, Make-up, Medicine, Wyvern, Torque, Lobby, Sunflower, 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 #3736 Why so serious? by Taï Marsan


anonymous
anonymous
sketch #2982 Lion by Ati Gohary


anonymous
anonymous
sketch #3760 PSY by Juvenilia Alexandrino


Raisa Mahmud
sketch #2055 Flower


anonymous
anonymous
sketch #5079 SketchToy Pencil by Sarah Prieto


anonymous
anonymous
sketch #5286 Adventure Time by Manu Kp


Rachel Roe
sketch #2643 Spring chick


anonymous
anonymous
sketch #4555 Mario by Alexander Volodimirovich Danilchenko


anonymous
anonymous
sketch #3572 Hate mondays by Malyi Link


anonymous
anonymous
sketch #5260


anonymous
anonymous
sketch #4682 Elvis Presley by Nassim Nouri


anonymous
anonymous
sketch #4313


anonymous
anonymous
sketch #4945


AbdouGt Zizou
sketch #1503 L 'Algérie


sketchmaster
sketch #2627 Taz by sketchmaster


anonymous
anonymous
sketch #5071 Rihanna by Johan Kennet Espinoza Moreno


anonymous
anonymous
sketch #717


anonymous
anonymous
sketch #978


anonymous
anonymous
sketch #5290 Kyuubi Jorge Valero


anonymous
anonymous
sketch #323


anonymous
anonymous
sketch #5177


anonymous
anonymous
sketch #4749 Random Girl by Adellachamp Stand


anonymous
anonymous
sketch #4685 Dave Mustaine by Erika Ishikawa


anonymous
anonymous
sketch #3986


anonymous
anonymous
sketch #3344 Homer by Samuel Roberto


sketchmaster
sketch #2635 Zoidberg by sketchmaster


anonymous
anonymous
sketch #3012 Girl by Safa M. Esam Srk


anonymous
anonymous
sketch #2220 bahbah sexy sheep

tomski如何证明一个圆锥和圆柱的斜截面都是一个椭圆 知乎 coloring