Geometry, Right angle

28-July-2021 Wednesday
Answer to the post "Rectangle with sides 2m * 3m * 4m"

28-July-2021 Wednesday
Right triangle with sides 2m*3m*4m

11-May-2021 Tuesday
When I suddenly realized that I was growing up in the wrong direction

26-February-2021 Friday
Reply to the post “A seven-year-old’s homework has stumped a doctor of sciences”

13-February-2016 Saturday
correct geometry. Right angle.

12-February-2016 Friday
correct geometry. Right angle.

17-August-2014 Sunday
90 degrees


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