Circles Warmup

Determine the center and radius: x² + y² + 14x - 2y = -1

• center= (-7,2) radius= 3
• center= (-7,1) radius= 7
• center= (-4,1) radius= 5

Tags

CCSS.HSG.GPE.A.1

Identify the CENTER and RADIUS for the following circle:

 $\left(x\ -2\right)^2\ +\ \left(y-5\right)^2=\ 9$  

• Center: (-5,-2) Radius: 9

• Center: (5, 2) Radius: 81

• Center: (-2, -5) Radius: 2

• Center: (2, 5) Radius: 3

Tags

CCSS.HSG.GPE.A.1

What is 2π/3 radians in degrees? 

• 150
• 120
• 180
•  30

Tags

CCSS.HSF.TF.A.1

What is 60 degrees in radians? 

• 2π/3
• π/3
• 4π/3
• π/6

Tags

CCSS.HSF.TF.A.1

Find the length of the arc to 2dp

• 31.42cm

• 15.71cm

• 282.74cm

• 23.56cm

Tags

CCSS.HSG.C.B.5

The length of an arc is 18cm and the radius of the circle is 6cm. What is the radian measure of the central angle?

• 3 radian

• 2 radian

• 4 radian

• 2π radian

Tags

CCSS.HSG.C.B.5

Find the arc length.

• 3π/4 ft

• 39π/4 ft

• 13π/4 ft

• 4π/13 ft

Tags

CCSS.HSF.TF.A.1

CCSS.HSG.C.B.5