In basic Euclidean geometry no, the sum of the angles always equals 180 degrees exactly. In non-Euclidean geometry it can exceed 180 degrees.
Among the five basic postulates of Euclidean geometry, the first states that a straight line can be drawn between any two points. The second postulate asserts that a finite straight line can be extended indefinitely in both directions. The third postulate specifies that a circle can be drawn with any center and radius. Lastly, the fifth postulate, often called the parallel postulate, states that if a line intersects two other lines and forms two interior angles on the same side that are less than two right angles, the two lines will eventually meet on that side when extended.
A postulate.
The five tools that enabled the Greeks to utilize the five basic postulates of Euclidean geometry are the straightedge, compass, ruler, protractor, and a set square. The straightedge was used for drawing straight lines, while the compass allowed for the construction of circles and arcs. The ruler helped measure lengths, and the protractor was essential for measuring angles. The set square facilitated the construction of right angles and parallel lines, supporting the geometric principles established by Euclid.
Geometry, unlike science, doesn't really have laws, it has theorems, and many different mathematicians contributed to the creation of the basic theorems of geometry. Perhaps the best known is Pythagoras.
no, its a postulate
In basic Euclidean geometry no, the sum of the angles always equals 180 degrees exactly. In non-Euclidean geometry it can exceed 180 degrees.
compass and straightedge
Among the five basic postulates of Euclidean geometry, the first states that a straight line can be drawn between any two points. The second postulate asserts that a finite straight line can be extended indefinitely in both directions. The third postulate specifies that a circle can be drawn with any center and radius. Lastly, the fifth postulate, often called the parallel postulate, states that if a line intersects two other lines and forms two interior angles on the same side that are less than two right angles, the two lines will eventually meet on that side when extended.
It is a very basic concept which cannot be defined. Undefined terms are used to define other concepts. In Euclidean geometry, for example, point, line and plane are not defined.
an equation
The basic shape with 3 sides and 3 corners is called a triangle. A triangle is a polygon with three straight sides and three angles. It is the simplest polygon in Euclidean geometry.
A postulate.
The five tools that enabled the Greeks to utilize the five basic postulates of Euclidean geometry are the straightedge, compass, ruler, protractor, and a set square. The straightedge was used for drawing straight lines, while the compass allowed for the construction of circles and arcs. The ruler helped measure lengths, and the protractor was essential for measuring angles. The set square facilitated the construction of right angles and parallel lines, supporting the geometric principles established by Euclid.
Yes, you can move from basic Algebra to Geometry, but only upon recommendation from your teacher.
Euclid
The answer depends on what the requirements for the basic construction are.