Math Vocab
What is the name of a triangle with three different side lengths?
scalene
What is the formula for the area of a sphere?
4/3 π r^3
Mom and dad have four daughters, and each daughter has one brother. How many people are in the family?
7
What is the greatest common divisor of 2016 and 2017?
1
Two angles that add to 90º are __________.
complementary
What is the alternate interior angles theorem?
If two parallel lines are cut by a transversal, then the pairs of alternate interior angles are congruent.
What five letter word becomes shorter if you add two letters?
"short"
My dog Fifi is more than 1 year old. If she were 3 years older, her age would be the square of a certain integer. If she were 3 years younger, then her age would be that certain integer. How old is my dog?
6
The plane we most commonly use to graph functions in math class is called the _________ plane.
Cartesian
What is the sum of the interior angles of a 6 sided shape?
720º
Given that ½ of 5 = 3, if the same proportion holds, what is the value of 1/3 of 10 ?
4
If the three digit number 1A7 (where A is the tens digit) is divisible by three, but not by nine, what are the possible values of A?
4 and 7
"The sum of any number and zero is that number." is the _________ property.
identity
What are skew lines?
two lines that don't intersect and aren't parallel
Dan, Charlie, and Sam are three brothers. Each of their current ages is prime. The difference between any two of their ages is also prime. How old are they?
2, 5, and 7
One year, the month of January had exactly 4 Mondays and exactly 4 Fridays. On what day of the week did January 1 fall that year?
Tuesday
What is the name of a shape with eleven sides?
hendecagon
Who is called the "Father of Geometry"?
Euclid
What is the value of 1/2 of 2/3 of 3/4 of 4/5 of 5/6 of 6/7 of 7/8 of 8/9 of 9/10 of 1000?
When n is divided by 2016, the remainder is 1008. When 2n is divided by 2016, the remainder is k. For what integer k is this true?
0