已知一椭圆上6个点的位置(没有椭圆的图像),如何用尺规作出此椭圆的中心、焦点? 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 theseSnow cone, Shield, Soccer ball, Grocery store, Bounce castle, Koala, Church, Wok, Cheeseburger, Cheese and Crackers, 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 #5261


anonymous
anonymous
sketch #1185


anonymous
anonymous
sketch #3513


anonymous
anonymous
sketch #270


anonymous
anonymous
sketch #4582 Pikachu by Mariana Sanchez Acevedo


anonymous
anonymous
sketch #4503 Naruto Biju Mode by Jessie Lightwood


anonymous
anonymous
sketch #5330 Frozen by Amanda Kachadurian


John Davis
sketch #2784


anonymous
anonymous
sketch #1260


anonymous
anonymous
sketch #3760 PSY by Juvenilia Alexandrino


anonymous
anonymous
sketch #1287 No smoke


anonymous
anonymous
sketch #3698


anonymous
anonymous
sketch #5048


anonymous
anonymous
sketch #5070 The Rolling Stones by Roby Krdoso


anonymous
anonymous
sketch #214 bugs bunny


anonymous
anonymous
sketch #3532 Angel by Geneval Mendes


anonymous
anonymous
sketch #5200 Kristen Stewart by Rhemzkian Esturco


anonymous
anonymous
sketch #3950


anonymous
anonymous
sketch #4984 Zombie by London Waterlilly


anonymous
anonymous
sketch #5197 Rihanna by Ben Hall


anonymous
anonymous
sketch #600


Gabriela Segura
sketch #2740 Monster by Gabriela Segura


anonymous
anonymous
sketch #3589 Cheshire Cat by Helen Besley


anonymous
anonymous
sketch #5203 Alien vs. Predator Ani Chachua


anonymous
anonymous
sketch #4387 dong air


anonymous
anonymous
sketch #3562 Angry by Leon Soria Ricardo


Jay Lantz
sketch #3743 Just for fun

tomski已知一椭圆上6个点的位置(没有椭圆的图像),如何用尺规作出此椭圆的中心、焦点? 知乎 coloring