Circle Review Quiz #2

Find the center if the endpoints of the diameter are at (-12, -7) and (3, 5)

• (-9/2, -1)
• (-15/2, -6)
• (9/2, 1)
• (15/2, 6)

• (x+1)² + (y +1)² = 3
• (x+1)² + (y -1)² = 3
• (x+1)² + (y +1)² = 9
• (x-1)² + (y -1)² = 9

In the equation (x-4)²+(x-3)²=25, the radius is

• 4
• 3
• 5
• 25

What are the coordinates of the center and the radius of the circle with equation:
(x - 4)² + (y - 3)² = 25 ?

• Center (4,3)
  Radius = 5 units
• Center (4,3)
  Radius = 25 units
• Center (-4,-3)
  Radius = 25 units
• Center (-4,-3)
  Radius = 5 units

Tags

CCSS.HSG.GPE.A.1

What is the equation of the circle, with centre (-2,-7) and radius 3 units?

• (x + 2)² + (y + 7)² = 3
• (x - 2)² + (y - 7)² = 9
• (x + 2)² + (y + 7)² = 9
• (x - 2)² + (y - 7)² = 3

Tags

CCSS.HSG.GPE.A.1

What is the equation of the circle, with center (-4,5) and radius 6 units?

• (x - 4)² + (y + 5)² = 6
• (x - 4)² + (y + 5)² = 36
• (x + 4)² + (y - 5)² = 6
• (x + 4)² + (y - 5)² = 36

Tags

CCSS.HSG.GPE.A.1

A line segment between two points on the circle which passes through the center

• Radius
• Diamater
• Chord
• Tangent

A bicycle tire has a diameter of 27 inches. What is the radius?

• 27π
• 13.5
• 81
• 25π

Tags

CCSS.7.G.B.4

Is the red line a radius or diameter of the circle?

• Radius
• Diameter

Tags

CCSS.HSG.C.A.2

What is CB?

• diameter
• center
• circumference
• radius

Tags

CCSS.HSG.C.A.2