1.
What is paper folding aso called?
Correct Answer
B. Origami
Explanation
Origami is the correct answer because it is a traditional Japanese art of paper folding. It involves creating intricate and delicate designs by folding paper without the use of scissors or glue. The word "Origami" comes from the Japanese words "ori" meaning folding and "kami" meaning paper. This art form is not only visually appealing but also requires precision and patience. It is widely practiced and admired worldwide for its creativity and beauty.
2.
Which set of equation do we use the paper fold for?
Correct Answer
B. Mathematical equation
Explanation
The paper fold method is commonly used to solve mathematical equations. By folding a piece of paper and using geometric constructions, it becomes possible to find the solution to certain types of equations. This technique is particularly useful for solving quadratic equations, as it allows for a visual representation of the problem and helps in understanding the roots of the equation. Therefore, the correct answer is Mathematical equation.
3.
Which of the mathematicians used paper folding to represent geometrical constructions?
Correct Answer
A. Sundara Rao
Explanation
Sundara Rao used paper folding to represent geometrical constructions.
4.
Which of the following shows the construction of paper folding models?
Correct Answer
D. Crease pattern
Explanation
The correct answer is "Crease pattern." A crease pattern is a diagram that shows the folding lines and creases required to construct a paper folding model. It is a visual representation of the steps needed to create the model, indicating where to fold and where to make creases. It serves as a guide for accurately folding the paper and achieving the desired shape or design.
5.
How do we identify map folding problems?
Correct Answer
D. When creases are orthogonal
Explanation
When creases are orthogonal, it means that they are at right angles to each other. In the context of map folding, this can be used as a way to identify folding problems. When creases are not orthogonal, it can indicate that the folding is incorrect or that the map is not folded properly. Orthogonal creases are important for creating neat and organized folds, ensuring that the map can be easily unfolded and read without any confusion or distortion.
6.
How many mathematical rules do we follow to produce flat-foldable patterns?
Correct Answer
B. 3
Explanation
To produce flat-foldable patterns, we follow three mathematical rules. These rules ensure that the pattern can be folded without any overlaps or gaps. By following these rules, we can create a flat-foldable pattern that can be easily folded into a three-dimensional shape.
7.
Which of these is one of the rules used for producing flat-foldable patterns?
Correct Answer
C. Maekawa's theorem
Explanation
Maekawa's theorem is one of the rules used for producing flat-foldable patterns. This theorem states that for a flat-foldable pattern, the sum of the number of edges, number of vertices, and number of faces minus the number of holes must equal 2. This theorem helps in determining whether a pattern can be folded flat without any overlaps or self-intersections.
8.
In Kawasaki theorem, what is the sum of all odd angles?
Correct Answer
B. 180 degrees
Explanation
The Kawasaki theorem states that in a triangle, the sum of the odd angles (angles opposite odd sides) is equal to 180 degrees. This means that if we add up all the odd angles in a triangle, the total will always be 180 degrees.
9.
Can a sheet penetrate a fold?
Correct Answer
A. No
Explanation
A sheet cannot penetrate a fold because by definition, a fold involves bending or creasing a material, which creates layers that are stacked on top of each other. Therefore, there is no space for the sheet to pass through the fold.
10.
Which of the following scientists did NOT work on this model?
Correct Answer
D. Justine Joaquin
Explanation
The question asks which scientist did NOT work on the model. The names provided are Beloch Margharita, Humiaki Huzita, Jacques Justin, and Justine Joaquin. Out of these names, Justine Joaquin is the only one who did NOT work on the model.