Circles and more

In the equation
(x-3)²+(y-2)²=16, the center of the circle is...

• (3,2)
• (-3, -2)
• (-2, -3)
• (2, 3)

What is the radius of the circle
(x+7)²+(y-2)²=144?

• 7
• 12
• 13

What is the center of the circle with equation x² + y² = 1?

• (1, 1)
• (0, 0)
• not enough information

Tags

CCSS.HSG.GPE.A.1

State the center and the radius:  x²-8x+y²+4y=-4 

• C: (-4, 2), r=4

• C: (-4, -2), r=4

• C: (4, -2), r=16

• C: (4, -2), r=4

What is the length of TR?

• 4
• 6
• 9
• 11

Tags

CCSS.HSG.C.A.2

Solve for a.

• 6
• 6.67
• 8.33
• 10

Tags

CCSS.HSG.C.A.2

Find x

• 10
• 5
• 18
• 9

Tags

CCSS.HSG.C.A.2

Which is the correct equation to find m<KLM?

• x = 1/2(140 - 66)
• x = 1/2(140+66)
• 66 = 1/2(140 - x)
• 66 = 1/2(140 + x)

Tags

CCSS.HSG.C.A.2

Which best describes line AB?

• chord
• secant
• tangent
• diameter

Tags

CCSS.HSG.C.A.2

What is the measure of arc DC?

• 140
• 98
• 122
• 61

Tags

CCSS.HSG.C.A.2