Area & Circumference
Arc Length
Sector Area
????
100
A circle has a radius of 6 cm. What is the circumference?
37.7 cm
100
If a circle has a radius of 4 inches, what is the arc length formed by a central angle of 90 degrees?
6.3 inches
100
If a circle has a radius of 5 inches, what is the sector area formed by a central angle of 90 degrees?
19.6 inches²
100
What is the area of a circle with a circumference of 6π?
9π
200
What is the area of a circle with a radius of 6 cm?
113.0 cm²
200
If a circle has a radius of 10 cm., what is the arc length formed by a central angle of 45 degrees?
7.9 cm.
200
If a bike tire has a radius of 15 inches, what is the sector area formed by a central angle of 100 degrees?
196.3 inches²
200
This is a line that intersects the circle at exactly one point.
What is a tangent?
300
What is the radius of a pie with an area of 78.5 cm2?
5 cm
300
If a circle has a radius of 6 inches, what is the arc length formed by a central angle of 70 degrees?
7.3 inches
300
If a cookie has a radius of 4 cm., what is the sector area formed by a central angle of 180 degrees?
25.1 inches²
300
Find the measure of
angleMIJ
125 degrees
400
If a circle has a circumference of 44 cm., what is its diameter? Round to the nearest whole number.
14 cm.
400
Find the measure of arc ACD
140 degrees
400
Find the radius of a circle which has a sector area of 9π whose central angle is 90°.
r = 6
400
A line segment with both endpoints on the circle that passes through the center point.
What is diameter?
500
What is the diameter of a circle that has an area of 314 in2?
20 inches
500
A circle has an arc whose measure is 80° and whose length is 88π. What is the diameter of the circle?
396
500
Find the measure of the central angle of a sector if its area is 5π and the radius is 6.
50 degrees
500
Find the measure of arc WV.
50 degrees