
Circle Area Applications
Authored by Anthony Clark
Mathematics
11th Grade
CCSS covered

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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The radius of a circle is decreasing at a constant rate of 0.1 cm/sec. In terms of the circumference C, what is the rate of change of the area of the circle, in square centimeters per second?
-(0.2)πC
-(0.1)C
(0.1)2C
(0.1)2C
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The radius of a circle is increasing at a constant rate of 0.2 meters per second. What is the rate of increase in the area of the circle at the instant when the circumference of the circle is 20π meters?
0.04π m2/sec
0.4π m2/sec
4π m2/sec
20π m2/sec
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the area of this circle?
8322.13
1134.11
4536.46
1267.09
Tags
CCSS.7.G.B.4
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Jacob is painting a circular picture on his wall. If the painting has a diameter of 4 ft, how much paint will he need to cover the inside of the circle? Is this question asking you to find the area, circumference, or neither?
area
circumference
neither
Tags
CCSS.7.G.B.4
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A clock face has a diameter of 10 inches. What is the approximate area of the clock face in square inches?
314 in2
31.4 in2
7.85 in2
78.5 in2
Tags
CCSS.7.G.B.4
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
find the area of the circle with radius 3 cm below.
100 cm2
225 cm2
9 cm2
28.26 cm2
Tags
CCSS.7.G.B.4
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Find the area of the circle
43.96
153.86
87.82
307.72
Tags
CCSS.7.G.B.4
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