PSAT Circles

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

• 4

• 2

• 3

• 16

Tags

CCSS.HSG.GPE.A.1

What is the center and radius for a circle with the equation:
(x-4)²+(y+2)²=25

• C:(4, -2), r=5

• C:(-4, 2), r=5

• C:(4, -2), r=25

• C:(-4, 2), r=25

Tags

CCSS.HSG.GPE.A.1

Write the Standard Equation for a circle with a center (-2,5) and radius 7

• (x+2)² + (y-5)² = 49

• (x+9)² + (y-6)² = 49

• (x+2)² + (y-5)² = 32

Tags

CCSS.HSG.GPE.A.1

What is the length of arc BB'?

• 30pi

• 1/3

• 10pi

• 4/3pi

Tags

CCSS.HSG.C.B.5

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

Find the circumference of a circle with diameter = 10 ft

• 3.14 ft

• 31.4 ft

• 314.1 ft

• 62.8 ft

Tags

CCSS.7.G.B.4

Jose has a bicycle tire with a circumference of 125.6 inches.  Which would be the closest to the length of the spokes on the tire? 

• 12.56 inches

• 10 inches

• 62.8 inches

• 20 inches

Tags

CCSS.7.G.B.4

Adolfo is buying new tires for his bike.  If his bike tire has a radius of 8, what is the distance around the tire he is purchasing?

• 50.24

• 25.12

Tags

CCSS.7.G.B.4

What is the m∠U?

• 38⁰

• 19⁰

• 76⁰

• 90⁰

Tags

CCSS.HSG.C.A.2

Find a and b.

• a=74⁰
  b=93⁰

• a=93⁰
  b=74⁰

• a=87⁰
  b=106⁰

• a=106⁰
  b=87⁰

Tags

CCSS.HSG.C.A.2