Those signs are called prohibition signs, and whatever is pictured behind the crossed out red circle is forbidden.
Some examples: safetysignsservice.com.au/signs/prohibition-signs
The length of one diagonal is not sufficient to determine its sides and so its perimeter.
Well, USA. was having problems with the land and they spread borderlines across Alaska. I don't think Alaska was too happy.
d = 13
The area is 12.5 m2
36
13 units. Use Pythagoras.
No, the law of acceleration does not apply to objects in circular motion. Instead, objects in circular motion follow the principles of centripetal acceleration and centripetal force, which keep the object moving in its circular path.
A cone is a 3D object having a flat circular base with a tapering circular body meeting at its vertex and its looks like a witch's hat.
maths
See website: Laos
By having Mexico start the war by driving the Mexican forces out of the disputed border region in Texas & make the border secure.
They can replicate themselves. They have circular DNA. They also have 70s ribosomes