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Unit 8 Test A
By Kattie Castineyra
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Last updated over 1 year ago
10 questions
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Question 1
1.
Find the
approximate
circumference of a circle with a radius of 15 inches.
Note: C = 3.14
d
706.9 in
94.2 in
15 in
47.1 in
2827.4 in
Question 2
2.
Find the
exact
area of a circle with a diameter of 36 meters.
Note: A = 𝜋r
2
6250𝜋 meters
36𝜋 meters
3888𝜋 meters
72𝜋 meters
324𝜋 meters
Question 3
3.
Give the most specific name for line EF in the picture below.
chord
secant
tangent
point of tangency
radius
Question 4
4.
Identify a chord in the picture below.
line DB
line EF
segment AC
ray AE
segment PB
Question 5
5.
Find the length of minor arc AB in circle P with a radius of 6 centimeters.
Use a calculator to round your answer to the nearest tenth of a cm.
Note: Arc Length = (
central angle
/
360
) 𝜋
d
3.1 cm
6.3 cm
18.8 cm
4.7 cm
1.6 cm
Question 6
6.
Find the measure of arc JL and identify the arc as a major arc, minor arc, or semi-circle.
Question 7
7.
Determine whether segment FG is tangent to circle E. Give justification for your answer by showing your work.
Note: a
2
+ b
2
= c
2
visibility
View drawing
Question 8
8.
Find the area of the sector formed by the acute angle JLK.
Use a calculator to round to the nearest tenth of a foot.
Note: sector area = (
central angle
/
360
) 𝜋r
2
Question 9
9.
Determine the length of KJ. Show your work for full credit.
Note: Once you solve for x, you still need to find the length of KJ.
visibility
View drawing
Question 10
10.
Determine the measure of minor arc AB. Show your work for full credit.
Note: Once you solve for x, you still need to find the measure of arc AB.
visibility
View drawing