Review the Past
Wells Worksheet (W2)
1. Find the length of arc [pic].
2. The diameter is [pic] cm. Find the length of arc [pic].
Arc: ___________________
Arc: ___________________
3. The length of arc [pic] is [pic] in. Find the length of the radius.
4. Find the length of arc [pic].
Radius: ___________________
Arc: ___________________
5. A circle has an arc whose measure is 80° and whose length is [pic]. What is the diameter of the circle?
6. A circle has a circumference whose length is [pic]. Find the length of an arc whose central angle is [pic].
7. Find the measure of the central angle of an arc if its length is [pic] and the radius is 18.
8. Calculate the sector area:
a.
b.
c.
[pic] [pic] [pic]
9. The area of a circle is [pic] square inches. Find the area of the sector whose central angle is [pic].
10. The central angle of a sector is [pic] and the area of the circle is [pic]. What is the area of the sector?
11. A circle has a radius of 12. Find the area of the sector whose central angle is [pic].
12. Find the radius of a circle which has a sector area of [pic] whose central angle is [pic].
13. The central angle of a sector is [pic] and the sector has an area of [pic]. Find the radius.
14. Find the measure of the central angle of a sector if its area is [pic] and the radius is 6.
-----------------------
Date:
Block:
A
B
6 cm
120°
C
D
60°
X
Y
10 cm
70°
F
E
30°
90°
16 in
8 m
135°
18 m
40°
................
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