Algebra2 3rd Quarter Assessment

7π/6

• 240

• 225

• 210

135⁰

• 2π/3

• 3π/4

• 5π/6

• 4π/3

cosΘ = 1/2

• 2π/3

• π/6

• 5π/6

• π/3

Select ALL angles that have a negative sin

• 120

• 180

• 225

• 300

cos 225⁰

• -√3/2

• √3/2

• √2/2

• -√2/2

sin 5π/6

• √3/2

• -√3/2

• 1/2

• -1/2

sin π/4

• √2∕2
• 1/2
• √3/2
• 0

Tags

CCSS.HSF.TF.A.2

sin 7π/6

• 1/2
• -1/2
• √3/2
• -√3/2

Tags

CCSS.HSF.TF.A.2

The unit circle...

• Has center at (1,1)
• Has a circumference of 1
• Has a diameter of 1
• Has a radius of 1

Tags

CCSS.HSF.TF.C.8

CCSS.HSG.GMD.A.1

The hypotenuse of any right triangle from the center of the unit circle to an edge is always

• 1
• sqt2/2
• sqt3/2
• 1/2