When a line divides another in two equal parts, it is called a bisector. If the bisector happens to cross the other line at right angles, it is called a perpendicular bisector.
square?
Rene Descarite
A book written in Arabic called " Al-jebr w'al-mugabalah" is where algebra got its name. The beginning of this name, Al-jebr, is obviously its origin and means "the reunion of broken parts".
EQUILATERAL triangle. Two sides the same length , and two angles equal is ISOSCELES Triangle A triangle with a Right-Angle is a RIGHT -ANGLED Triangle No equal sides/angles is a SCALENE triangle.
Twelfths.
Each part is a twelfth.
The denominator.
Numerator
This is the denominator, which is the bottom line of the fraction.
In its simplified form, there is no such number.
the fraction name is 9/17 or nine over seventeenths.
There are six sixths in a whole. In terms of numbers, 6/6 = 1.
Hemispheres
I'm not exactly sure what you mean, but the top number is called the numerator and the bottom number is called the denominator.
Another name for 'rational' is "numbers that are equal to the ratio of two whole numbers". Another name for 'irrational' is "numbers that are not equal to the ratio of any two whole numbers".
denominator