如何严谨的证明三角形内角和为180º?(多种方法)? 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 theseBunkhouse, Omelet, Confetti, Pig, Mountain range, Crop, Kissing bandit, Toboggan, Baker, Lips, 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 #1260


anonymous
anonymous
sketch #1536 Dark Night


anonymous
anonymous
sketch #2318


anonymous
anonymous
sketch #4093 freefree


anonymous
anonymous
sketch #4446 EDDIE by يآآسر محمد


anonymous
anonymous
sketch #3244 Winnie the Pooh by Ashok Kumar Chaturvedi


anonymous
anonymous
sketch #2982 Lion by Ati Gohary


anonymous
anonymous
sketch #5350


anonymous
anonymous
sketch #3404 Terminator by Enrique L. Manly


anonymous
anonymous
sketch #5088


anonymous
anonymous
sketch #3191


sketchmaster
sketch #2625 Dragon by sketchmaster


anonymous
anonymous
sketch #5141


Carly Kelly
sketch #120 a pretty flower


anonymous
anonymous
sketch #3250 Lonely cat Lars Tunebo


anonymous
anonymous
sketch #3232


anonymous
anonymous
sketch #5136


anonymous
anonymous
sketch #3974 Bird Skerch w/ vibration


anonymous
anonymous
sketch #4736 Naruto by Wellen Lima


anonymous
anonymous
sketch #3732 Michael Jackson by David Obando


anonymous
anonymous
sketch #5168


anonymous
anonymous
sketch #4688


anonymous
anonymous
sketch #5316


Zay Lin
sketch #3399 zay lin


anonymous
anonymous
sketch #5124 Tony Tony Chopper by 陳一夫


anonymous
anonymous
sketch #5180


John Davis
sketch #2784


anonymous
anonymous
sketch #4349 Cícero Николай Герасимов

tomski如何严谨的证明三角形内角和为180º?(多种方法)? 知乎 coloring