Circles Unit Review

What does (h,k) stand for in the standard circle equation?

• (h,k) is the center of the circle

• (h,k) is a point on the circle.

• (h,k) is a point that we guess and find

• (h,k) is the distance of the circle

Tags

CCSS.HSG.GPE.A.1

What is the equation of a circle with radius 2 and center (3, 4)?

• (x+3)² + (y+4)² = 2
• (x-3)² + (y-4)² = 2
• (x+3)² + (y+4)² = 4
• (x-3)² + (y-4)² = 4

Tags

CCSS.HSG.GPE.A.1

What is the equation of the circle?

• (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

Tags

CCSS.HSG.GPE.A.1

In the equation (x-3)²+(y+4)²=121, the radius of the circle is

• 242
• 11
• 121
• 22

Tags

CCSS.HSG.GPE.A.1

Solve for the missing angle.

• 45^o
• 90^o
• 22.5^o
• 128^o

Tags

CCSS.HSG.C.A.2

What is the measure of ∠PTQ?

(Remember there is a total of 360º in a circle)

• 100°

• 140°

• 180°

• 120°

Tags

CCSS.4.MD.C.7

Find the measure of arc AB.

• 17
• 34
• 68
• 146

Tags

CCSS.HSG.C.A.2

What is the measure of angle DEF?

• 72
• 73
• 74
• 75

Tags

CCSS.HSG.C.A.2

Find the area of each sector.

• 52.4 in²
• 18,864 in²
• 60 in2
• 10.47 in

Tags

CCSS.HSG.C.B.5

Calculate the length of the bold arc.

• 5040 cm

• 43 cm

• 44 cm

• 14 cm

Tags

CCSS.HSG.C.B.5