

Exploring the Area of a Circle
Interactive Video
•
Mathematics
•
6th - 8th Grade
•
Practice Problem
•
Hard
Standards-aligned
Emma Peterson
FREE Resource
Standards-aligned
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the formula for the area of a circle?
Area = pi * r^2
Area = 2 * r^2
Area = 2 * pi * r
Area = pi * r
Tags
CCSS.7.G.B.4
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If the radius of a circle is 4 cm, what is the area using 3.14 for pi?
12.56 square cm
50.24 square cm
25.12 square cm
100.48 square cm
Tags
CCSS.7.G.B.4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is the area formula represented as pi * r^2 geometrically accurate?
It is the sum of the circle's radius.
It represents the number of squares inside the circle.
It calculates the perimeter of the circle.
It represents the diameter squared.
Tags
CCSS.7.G.B.4
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the area of a circle with a radius of 5 cm using 3.14 for pi?
78.5 square cm
39.25 square cm
157 square cm
19.625 square cm
Tags
CCSS.7.G.B.4
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If the diameter of a circle is 12 cm, what is the correct radius to use in the area formula?
3 cm
12 cm
24 cm
6 cm
Tags
CCSS.7.G.B.4
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does it mean to calculate the area of a circle in terms of Pi?
Using a numerical value for pi
Leaving pi as a symbolic constant
Multiplying pi by 2
Dividing the area by pi
Tags
CCSS.7.G.B.4
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which representation of the area is more precise: '50.24 cm^2' or '16 Pi cm^2'?
Both are equally precise
16 Pi cm^2
50.24 cm^2
Neither are precise
Tags
CCSS.7.G.B.4
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