sin60o
√3/2
sinθ = -1/2
0 < θ < 180o
210o, 330o
What is the formula to convert degrees to radians?
r = d * π/180o
Quan was using the law of sines to determine the number of possible triangles. He got 45o for the missing angle. What is the other possible angle?
135o
What is the circumference of a circle with radius 6?
12π
tan240o
1
tanθ = √3
90o < θ < 270o
240o
What is the formula to convert radians to degrees?
d = r * 180o/π
200o
What is the area of a circle with radius 6?
36π
sec(-3π/4)
-√2
cotθ = √3
π/2 < θ < 3π/2
7π/6
What is the Law of Sines
sinA/a = sinB/b = sinC/c
Quan was solving a triangle, but then he determined there were no solutions. What must have been true about the trig ratio?
sin > 1
What is the arc length of an arc of measure 100o?
10π/3
cot(600o)
√3
secθ = undefined
0 < θ < 2π
π/2 , 3π/2
What is the formula for a arc length for an arc measure of θo.
L = 2πr * θo/360o
How many triangles are there
<C = 54°, b = 24 km, c = 23 km
one
What is the area of a sector with an arc of measure 100o?
10π
csc(-7π)
undefined
cscθ = √2
0 < θ < π
π/4 , 3π/4
What is the formula for a sector area for an arc measure of θo.
S = πr2 * θo/360o
Where did Ms. Cornell go to college?
CU
If the area of a circle is 45, what is the circumference? Round to the nearest tenth.
23.75