Circles Review

 $\left(x-3\right)^2+\left(y+2\right)^2=9$ 

Identify the CENTER and RADIUS of the circle.

Hint: Equation of Circles Formula

• Center= (-3,2)
  Radius= 9

• Center= (6,2)
  Radius = 6

• Center= (3,-2)
  Radius= 3

Tags

CCSS.HSG.GPE.A.1

 $\left(x-1\right)^2+\left(y+5\right)=49$  
Identify the CENTER and RADIUS of the circle

• Center: (1,-5)
  Radius: 7

• Cener: (-1,5)
  Radius: 49

• Cener: (1,-5)
  Radius: 49

Tags

CCSS.HSG.GPE.A.1

Write the equation of the described circle.

Cenetr: (4,-7)

Radius: 6

• $\left(x+4\right)^2+\left(y-7\right)^2=6$

• $\left(x-4\right)^2+\left(y+7\right)^2=36$

• $\left(x+16\right)^2+\left(y-7\right)=\ 36$

Tags

CCSS.HSG.GPE.A.1

Find the Circumference

Hint:  $C=2\pi r$  

•  $2\pi r$  

•  $8\pi$  

•  $25.13$  

Tags

CCSS.7.G.B.4

Find the Area of the circle.

Hint: $A=\pi r^2$  

•  $\pi\left(12\right)^2$  

• 144

•  $452.3$  

Tags

CCSS.7.G.B.4

Find the circumference of the circle.

Hint: $C=\pi d$  

• 10

• 78.5

• 31.4

Tags

CCSS.7.G.B.4

Find the measure of arc GHEF

• 230

• 112

• 80

Tags

CCSS.HSG.C.B.5

Find the arc length.

Hint: Circumference formula
Hint: A circle is 360 $\degree$  

• 135/260yd

• 18.84yd

• 31.4yd

Tags

CCSS.HSG.C.B.5

Find the Area of the Sector

Hint: Area Formula

Hint: A circle is 360

• 60/360

• 33.51

• 987654321

• 76.45

Tags

CCSS.HSG.C.B.5

Find the perimeter of the polygon.

Hint: Isosceles Triangle

• 34

• 447

• $13^{55}$

• $\sqrt{54}$

Tags

CCSS.3.MD.D.8