Radius & Diameter
Circumference and Area
Arc Length & Sector Area
Arcs and Inscribed Angled
The equation of a circle
100
The diameter is 10 inches. Find the radius.
What is 5 inches.
100
A circle has a diameter of 12.5 inches. What is the circumference?
What is
12.5pi
100
The radius of a circle is 8 meters. What is the area of a sector bounded by a 135° arc?
What is 24 pi?
100
Solve for the measure of arc QT.
What is 100 degrees?
100
What is the standard equation of a circle?
What is
(x-h)^2+(y-k)^2=r^2
200
The diameter is 25 feet. Find the radius.
What is 12.5 feet.
200
A circle has a radius of 12.5 inches. What is the circumference.
What is
25pi
200
Find the area of a sector if the radius of a circle is 16 cm and the central angles measures 75 degrees.
What is 160 pi/3?
200
Solve for the measure of angle RTS.
What is 24 degrees?
200
Write the equation of a circle with center (4,5) and radius 6.
What is
(x-4)^2+(y-5)^2=6^2
300
The circumference of the circle is
18 pi
Find the radius.
What is 9 inches
300
A circle has a radius of 50 miles. What is the area of the circle?
What is
2500pi
300
Find the length of an arc with a radius of 11 ft. and a central angle measure of 315 degrees?
What is 77 pi/4?
300
Solve for the measure of arc GF.
What is
GF=130
300
Write the equation of a circle with the center (4,-5) and radius 3.78.
What is
(x-4)^2+(y+5)^2=3.78^2
400
The area of this circle is
25pi
Find the radius.
What is 5 inches.
400
A circle has a diameter of 16. Find the area in terms of pi.
What is
64 pi
400
A lawn sprinkler located at the corner of a yard is set to rotate through 90° and project water out 30 feet. What area of the lawn is watered by the sprinkler?
What is 225 pi?
400
Solve for the measure of Z.
What is 100 degrees?
400
Given the equation (x − 1)2 + (y − 2)2 = 9, What is the center?
Center is (1,2)
500
A circle has an area of
256pi cm2.
Find the diameter.
What is 32cm
500
A circle has a circumference of
6pi
What is the area?
What is
9 pi
500
The path traced by a golfer’s club when he hits the ball is the arc of a circle. If the golf club is 95 cm long, calculate the distance travelled by the head of the club when the golfer swings his club, Arc 𝐶𝐵𝐴.
What is 665 pi/4?
500
Solve for the value of x.
What is
x=10
500
x^2 +y^2= 25, What is the center?
Center (0,0)