Circle W has a center at (-10, 5) and a diameter of 12 units. Which point lies on circle W?
r = 12/2 = 6; (x+10)^2 + (y-5)^2 = 36; B) (-4, 5)
Oops!
Check
Okay!
Check
15
Find the area of the bold section of the circle. Round to the nearest hundredths place.
(150/360)*pi(3)^2 = 11.78
Oops!
Check
Okay!
Check
15
Taylor started writing the equation of circle O as shown. She knows that a point with coordinates (-6, 8) lies on circle O. What number should Sandra place in the blank to finish writing the equation correctly?
(-6-7)^2 + (8+16)^2 = 745
Oops!
Check
Okay!
Check
15
Find the area of the bold section of the circle. Round to the nearest tenths place.
(60/360)*pi(10)^2 = 52.4
Oops!
Check
Okay!
Check
seesaw
Swap points!
Oops!
star
Double points!
Okay!
gift
Win 10 points!
Okay!
thief
Give points!
5
10
15
20
25
15
Given the circumference of the circle is 28pi. Find the length of the bold arc. Round your answer to the nearest tenths place.
(153/360)*28*pi = 77.0
Oops!
Check
Okay!
Check
15
Jaden painted a section of a circular sign as shown. What is the area of the section of the sign he painted? Round to nearest tenth.
(265/360) * pi*12^2
Oops!
Check
Okay!
Check
15
What is the equation of the circle shown on the graph?
(x-3)^2 + (y+1)^2 = 16
Oops!
Check
Okay!
Check
15
Determine the bold sector area. Round to the nearest tenths place.
(315/360)*pi(14)^2 = 538.8
Oops!
Check
Okay!
Check
15
The equation of a circle is given. Determine the center of the circle and the length of the diameter.
Center: (7, -16) Diameter: 9*2=18
Oops!
Check
Okay!
Check
15
Given the circumference of the circle is 20pi.ย Find the length of the bold arc. Round your answer to the nearest tenths place.
(60/360)*20*pi = 10.5
Oops!
Check
Okay!
Check
15
Find the length of the bold arc. Round your answer to the nearest hundredths place.
(150/360)*2*pi*3 = 7.85
Oops!
Check
Okay!
Check
15
A circle has a diameter with endpoints (โ21,โ7) and (โ21,-21). What is the equation of the circle?