Standard Position
This is the point where all angles in standard position begin.
What is the origin?
This quadrant contains angles between 0° and 90°.
Answer: What is Quadrant I?
This trig ratio equals opposite ÷ hypotenuse.
What is sine?
This law is used when you know two angles and one side.
What is the Sine Law?
This law is used when you know SAS or SSS.
What is the Cosine Law?
Angles in standard position start on this axis.
What is the positive x-axis?
In this quadrant, sine is positive and cosine is negative.
What is Quadrant II?
sin(30°) equals this value.
What is 1/2?
The Sine Law formula is this.
What is a/sinA = b/sinB = c/sinC?
The Cosine Law formula is this.
What is
c² = a² + b² − 2ab cosC?
An angle measuring 270° ends in this quadrant or axis.
What is the negative y-axis?
In this quadrant, tangent is positive but sine is negative.
What is Quadrant III?
cos(60°) equals this value.
What is 1/2?
This is another name for AAS triangles.
What is Angle-Angle-Side?
Find angle C= if a=3, b=4, c=5
What is 90°
A 135° angle lies in this quadrant.
What is Quadrant II?
This is a coterminal angle for 330°.
What is −30°? (or 690°)
tan(45°) equals this value.
What is 1?
This situation can produce two possible triangles.
What is the ambiguous case?
Find side a if b=6, c=8, and A=60°.
What is 7.21
This is the reference angle for 210°.
What is 30°?
This is the reference angle for 315°.
What is 45°?
If opposite = 5 and hypotenuse = 13, this is sin θ.
What is 5/13?
If angle A = 30°, side a = 10, angle B = 60°, find side b.
What is about 17.3?
Find Angle A if a=7, b=9, c=12.
What is 34°