What is the special name given to an angle that is exactly 90 degrees?
What is the distance around a circle called?
Which of these traffic sign is in the shape of an octagon?
“∞” is the symbol for what “number” in mathematics, used to represent when a value is too high to count?
What kind of triangle has all three sides the same length?
A table has 10 columns and 10 rows. To find out how many cells are in the table, what operation do you use?
There is a special number in mathematics that is equal to approximately 3.14. What is its name?
What is the name for a special sequence or series of numbers where every number after the first two is the sum of the two preceding ones?
What is the name for the longest side of a triangle?
In “The Little Mermaid,” Ariel’s father (King Triton) carried a three-pronged spear. Use the number of prongs on the spear to correctly identify the name of the spear. What is the name of this spear?
How many sides does a decagon have?
Which of these numbers is largest?
Did you know! Emmy Noether (1882-1935) She devised a mathematical principle, called Noether's theorem, which became a foundation stone of quantum physics. Her calculations helped Einstein formulate his general theory of relativity. "It is really through her that I have become competent in the subject," he admitted.
Did you know! Lise Meitner (1878-1968) In 1938, after she escaped from the Nazis to Sweden, she carried out the key calculations that led to the discovery of nuclear fission. Her collaborator, Otto Hahn, who stayed behind in Germany, was the sole recipient of the Nobel Prize in chemistry in 1944. In 1997 Meitner was finally honored when element 109 was named meitnerium.
Did you know! Cecilia Payne-Gaposchkin (1900-1979) In her 1925 Ph.D. thesis—described by the noted astronomer Otto Struve in 1960 as "the most brilliant . . . ever written in astronomy"—she proposed that all stars are made mostly of hydrogen and helium. Astronomers dismissed her observations until four years later, when they were confirmed by a man. She was the first woman to become a professor of science at Harvard.