This math topic offers practice on calculating the area of a circle. It guides learning by providing hints and calculators for assistance. The exercises require the learner to use the given formula: A = πr² and r = d/2, where A represents the area, r the radius, and d the diameter of the circle. It incorporates visual aids in the form of SVG images to illustrate the math problems. This topic is part of a broader unit on geometry, specifically focusing on circle areas.

Work on practice problems directly here, or download the printable pdf worksheet to practice offline.

more
View

Area of a Circle (with hint and calculator) Worksheet

Mobius Math Academy logo
Area of a Circle (with hint and calculator)
1
An svg image showing a math problem
Find the area using the formula A = πr² and r = d/2
a
4
b
8
c
62.83
d
47.12
e
12.57
f
6.28
2
An svg image showing a math problem
Find the area using the formula A = πr² and r = d/2
a
18
b
113.1
c
9
d
28.27
e
9.42
f
18.85
3
Find the area using the formula A = πr² and r = d/2
An svg image showing a math problem
a
36
b
113.1
c
18.85
d
72
e
37.7
f
197.92
4
Find the area using the formula A = πr² and r = d/2
An svg image showing a math problem
a
50.27
b
32
c
16
d
25.13
e
12.57
f
175.93
5
Find the area using the formula A = πr² and r = d/2
An svg image showing a math problem
a
78.54
b
25
c
201.06
d
254.47
e
15.71
f
31.42
6
An svg image showing a math problem
Find the area using the formula A = πr² and r = d/2
a
18.85
b
3.14
c
6.28
d
37.7
e
2
f
1