HighFour History of Mathematics
Category A: Grades 4 – 5
Round 5
Wednesday, January 20, 2016
The use of calculator is not required.
Answer #1
Explanation:
International Mathematical Olympiad
The first IMO was held in Romania in 1959. It has since been held annually,
except in 1980. About 100 countries send teams of up to six students, plus
one team leader, one deputy leader, and observers.
Answer #2:
Explanation:
René Descartes
René Descartes was a French philosopher, mathematician, and scientist.
Dubbed the father of modern philosophy, much of subsequent Western
philosophy is a response to his writings, which are studied closely to this
day.
Answer #4
Explanation:
Professor Cuthbert Calculus
Professor Cuthbert Calculus is a fictional character in The Adventures of
Tintin, the comics series by Belgian cartoonist Hergé. He is Tintin's friend,
an absent-minded professor and half-deaf physicist, who invents many
sophisticated devices used in the series, such as a one-person shark-shaped
submarine, the Moon rocket, and an ultrasound weapon.
Answer #3
Explanation:
Isaac Newton
He wrote a number of religious tracts, acted as Member of Parliament for
some years, and became perhaps the best-known Master of the Royal Mint
in 1699, a position he held until his death in 1727.
Answer #5
Explanation:
Sudoku cube
In a standard Rubik's Cube, the player must match up colors on each side of
the cube. In the Sudoku Cube, the player must place the numbers one to
nine on each side with no repetition. This is achieved by rotating the sides
of the cube.
HighFour History of Mathematics
Category A: Grades 4 – 5
Round 5
Wednesday, January 20, 2016
The use of calculator is not required.
Answer #6
Explanation:
The Calculator
He is a DC world Super villain. He is known to wear a suit with a mini
computer which can calculate the actions of any super hero on Earth. He is
known to have a sharp mind thus giving him the name of The Calculator.
Answer #7
Explanation:
Icosagon
In geometry, an icosagon is a twenty-sided polygon or 20-gon. The sum of
any icosagon's interior angles is 3240 degrees.
Answer #8
Explanation:
parallelepiped
In geometry, a parallelepiped is a three-dimensional figure formed by six
parallelograms (the term rhomboid is also sometimes used with this
meaning). By analogy, it relates to a parallelogram just as a cube relates to
a square or as a cuboid to a rectangle.
Answer #9
Explanation:
129
The first 10 prime numbers are: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29. Their sum is
2 + 3 + 5 + 7 + 11 + 13 + 17 + 19 + 23 + 29 = 129.
Answer #10
Explanation:
tetrahedron
A tetrahedron is a solid having four plane triangular faces. It is also called a
triangular pyramid.
HighFour History of Mathematics
Category A: Grades 4 – 5
Round 5
Wednesday, January 20, 2016
The use of calculator is not required.
Answer #11
Explanation:
1.618
Mathematicians since Euclid have studied the properties of the golden
ratio, including its appearance in the dimensions of a regular pentagon and
in a golden rectangle, which may be cut into a square and a smaller
rectangle with the same aspect ratio.
Answer #12
Explanation:
Quadrillion
A quadrillion is a thousand raised to the power of five or 1015 .
Answer #13
Explanation:
Möbius strip
The Möbius strip, is a surface with only one side and only one boundary.
The Möbius strip has the mathematical property of being non-orientable. It
can be realized as a ruled surface. It was discovered independently by the
German mathematicians August Ferdinand Möbius and Johann Benedict
Listing in 1858.
Answer #14
Explanation:
diameter
The number 𝜋𝜋 is a mathematical constant, the ratio of a circle's
circumference to its diameter, commonly approximated as 3.14159. It has
been represented by the Greek letter "𝜋𝜋" since the mid-18th century.
Answer #15
Explanation:
100
The number googol is the number 1 followed by exactly 100 zeros.
HighFour History of Mathematics
Category A: Grades 4 – 5
Round 5
Wednesday, January 20, 2016
The use of calculator is not required.
Answer #16
Explanation:
Klein bottle
In mathematics, the Klein bottle is an example of a non-orientable surface;
it is a two-dimensional manifold against which a system for determining a
normal vector cannot be consistently defined. Informally, it is a one-sided
surface which, if traveled upon, could be followed back to the point of
origin while flipping the traveler upside down.
Answer #17
Explanation:
Circumference
The circumference of a circle is the distance around it. The term is used
when measuring physical objects, as well as when considering abstract
geometric forms.
Answer #18
Explanation:
Ada Lovelace
Augusta Ada King, Countess of Lovelace, daughter of George Gordon Byron,
was a British mathematician and writer, chiefly known for her work on
Charles Babbage's early mechanical general-purpose computer, the
Analytical Engine.
Answer #19
Explanation:
Hendecagon
In geometry, a hendecagon (also undecagon or endecagon) is an 11-sided
polygon. (The name hendecagon, from Greek hendeka "eleven" and gon–
"corner", is often preferred to the hybrid undecagon, whose first part is
formed from Latin undecim "eleven".
Answer #20
Explanation:
convex
In Geometry, convex means that it is arranged such that for any two points
in the set, a straight line between the two points is contained within the
set.