Answer:
6. it is a square because all of the outer sides are equal
3. perpendicular because the slopes are reciprocals of eachother and the lines would form 90 degree angles
You would take 113.087335529 and divide by pi
The letter "x" is often used in algebra to mean a value that is not yet known. It is called a "variable" or sometimes an "unknown". In x + 2 = 7, x is a variable, but we can work out its value if we try!
Hope this helps
That would be 60%. Hope I helped : )