Arithmetic Skills & Concepts
It's All about Signs
"left" (over) Triangles
Right Triangles
Solving Trig. Equations
100
The houses in a certain community are numbered consecutively from 2019 to 2176. How many houses are in the community?
What is 158?
100
The x-coordinate and the value of sine are both NEGATIVE in this quadrant.
What is the 3rd quadrant?
100
It is not a right triangle.
What is an "oblique" triangle?
100
They are "special" right triangles.
What are the 30-60-90 degree triangles and the 45-45-90 degree triangles?
100
solution for 2 cos x + 1 = 0
What is 'x = 120 degrees'?
200
What is the greatest number of positive integer values of x for which 1 < x^2 < 50? [Note: Read x^2 as "x squared" or "x to the 2nd power".] (A) Five (B) Six (C) Seven (D) Eight (E) Nine
What is "(B) Six"?
200
A negative angle opens __________.
What is 'clockwise'?
200
All three angles are less than 90 degrees.
What is an acute triangle?
200
It is what you do to find the other leg when you are given the measurements for a leg and the hypotenuse.
What is "subtract the square of that leg from the square of the hypotenuse and then take the square root of the result"?
200
solution for √3 csc x - 2 = 0
What is 'x = 60 degrees'?
300
Sine has the same value as this coordinate.
What is 'y'?
300
For a -10 degree angle, a 100 degree angle is this.
What is 'its complement'?
300
a/(sin A) = b/(sin B) = c/(sin C)
What is the Law of Sines?
300
It is the angle from the horizontal upward to an object.
What is the angle of elevation?
300
Both solutions for sin x (sin x + 1) = 0
What is 'x = 0 degrees' and 'x = 270 degrees'?
400
This is left when cos ϴ is squared then subtracted from 1.
What is sin ϴ squared?
400
(-1,0) on the unit circle in radians
What is pi?
400
The formula 'h = b sin A' is used to do this.
What is "help to determine the number of possible triangles"?
400
'3, 4, 5' and '5, 12, 13' and '9, 40, 41' are all examples of these special sets of numbers. (two words)
What are Pythagorean Triples?
400
solution for (square of tan (3x)) = 3
What is 'x = 20 degrees'?
500
It is an identity for 2sin(ϴ)cos(ϴ).
What is sin (2ϴ)?
500
-13π/8 is in this quadrant. (π is 'pi')
What is the FIRST quadrant?
500
It is the number of triangles possible when a = 15, b=25, and A = 85.
What is 'NONE'?
500
It is the height (to the nearest hundredth) of a kite when a 75-ft line attached to it is pulled taut, and the angle of elevation to the kite is approximately 60 degrees.
What is 64.95 feet?
500
solution for cos x + sin x tan x = 2
What is 'x = 60 degrees'?