Geometry
Name of a triangle with 2 congruent sides
Isosceles triangle
150-87
63
What is trigonometry?
The branch of math that studies the relationships between the sides and angles of triangles
A term used for a letter (x or y are the most common) representing the value of an unknown number
Variable
This is the average of a set of numbers, found by adding them all together and dividing by the count.
Mean
Area of a rectangle with lengths of 8 cm and 5 cm
40 cm2
Add like terms: 2x+5y-3x+3z-7y=__
-x-2y+3z
Name for a triangle in which all sides and angles are of the same length
Equilateral triangle
What is the value of x in an equation?
As a variable, it is an unknown number
This is the middle value when data is arranged in order.
Median
What is the length of the hypotenuse of a triangle with legs measuring 3cm and 4cm (Pythagorean Theorem)
5cm
If a jacket costs $80, but has a 25% discount, what is the final price?
60
Exterior angles in triangles are equal to?
Both remote interior angles
Solve for x: 6 + 2x = 22
8
What is the most frequently occurring value in a dataset
Mode
Name of the line that passes through the center all across a circle
Diameter
Cubic root of 27
3
The largest angle of a triangle is right across what part of the triangle?
The largest/longest side (This doesn’t apply to equilateral triangles)
Solve for x: 2x-5+3=6x-9
7/4 or 1.75
This is the measure of spread calculated by the difference between the highest and lowest value
Range
The area of a triangle with vertices at (0,0), (6,0), and (3,9).
27
What are the first 10 numbers from the Fibonacci sequence? (starting from 0)
0, 1, 1, 2, 3, 5, 8, 13, 21, 34
Formula for area of a triangle
A=1/2bh
Solve for x: 2x+3(x−4)=5x−12
No solution, x=0
What is the mean here? 70, 82, 94, 74
80