1.
Who is the founder of the Euclid geometry?
Correct Answer
B. Greek mathematician; Euclid..
Explanation
Euclid is commonly known as the founder of Euclidean geometry. He was a Greek mathematician who lived around 300 BCE. His work, "Elements," is one of the most influential mathematical texts in history and laid the foundation for the study of geometry. Euclid's approach to geometry was rigorous and logical, using axioms and deductive reasoning to prove theorems. His work had a significant impact on the development of mathematics and is still studied and used today.
2.
Euclid geometry is the plane and solid geometry commonly taught in secondary schools.
Correct Answer
A. True
Explanation
The statement is true because Euclid geometry is indeed the plane and solid geometry that is commonly taught in secondary schools. Euclid's work, known as "Elements," is a foundational text in mathematics and covers various topics such as points, lines, angles, triangles, and circles. It provides a systematic approach to understanding geometric concepts and is widely used in educational settings to teach students about the principles and properties of geometry.
3.
Euclidean geometry is an axiomatic system, in which all theorems are derived from a small number of axioms.
Correct Answer
A. True
Explanation
Euclidean geometry is indeed an axiomatic system, meaning that all the theorems within it are derived from a small number of axioms. This means that the entire system is built upon a set of basic assumptions or principles, from which all other statements and proofs are logically deduced. Therefore, the statement "Euclidean geometry is an axiomatic system, in which all theorems are derived from a small number of axioms" is true.
4.
Hyperbolic geometry means the same thing as Euclidean geometry.
Correct Answer
B. False
Explanation
Hyperbolic geometry and Euclidean geometry are not the same thing. While Euclidean geometry is based on the principles of flat space and the Pythagorean theorem, hyperbolic geometry is based on the principles of curved space and non-Euclidean geometry. In hyperbolic geometry, the angles of a triangle add up to less than 180 degrees, and parallel lines can intersect. This is in contrast to Euclidean geometry, where the angles of a triangle add up to 180 degrees and parallel lines never intersect. Therefore, the statement that hyperbolic geometry means the same thing as Euclidean geometry is false.
5.
The three steps from solids to points are?
Correct Answer
A. Solids – Surfaces – Lines – Points
Explanation
The correct answer is Solids – Surfaces – Lines – Points. This sequence represents the progression from three-dimensional objects (solids) to two-dimensional objects (surfaces) to one-dimensional objects (lines) and finally to zero-dimensional objects (points).
6.
How many dimensions does a solid have?
Correct Answer
C. 3
Explanation
A solid has three dimensions: length, width, and height. These dimensions define the shape and size of the object in three-dimensional space. In contrast, a two-dimensional object, like a piece of paper, only has length and width, while a one-dimensional object, like a line, only has length. The concept of a fourth dimension is often discussed in theoretical physics, but in everyday life, we typically only consider objects in three dimensions.
7.
How many dimensions does a surface have?
Correct Answer
B. 2
Explanation
A surface is a two-dimensional object that only has length and width, but no depth. It can be thought of as a flat plane that extends infinitely in all directions. Therefore, a surface has two dimensions.
8.
How many dimensions does a point have?
Correct Answer
B. 1
Explanation
A point is a geometric object that does not have any length, width, or depth. It is considered to be zero-dimensional because it does not occupy any space. However, it can still be represented as a single position in space, which gives it a single dimension. Therefore, a point has one dimension.
9.
What shape are side faces of a pyramid?
Correct Answer
A. Triangle
Explanation
The side faces of a pyramid are in the shape of triangles. This is because a pyramid is a three-dimensional shape with a polygonal base and triangular side faces that converge to a single point called the apex. Each side face is a triangle, making it the correct answer.
10.
The boundaries of solids are called?
Correct Answer
C. Surfaces
Explanation
Solids have three dimensions - length, width, and height. The boundaries of solids are defined by their surfaces, which separate the solid from the surrounding space. Surfaces can be flat or curved, depending on the shape of the solid. Therefore, the correct answer is "Surfaces".