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.
Practice:
Circle (with hint and calculator)
Complete these online problems with 80% or 4 correct answers in a row. Results are immediate.
Find the area using the formula A = πr² and r = d/2
Area of a Circle (with hint and calculator) Worksheet
| Math worksheet on 'Area of a Circle (with hint and calculator) (Level 1)'. Part of a broader unit on 'Geometry - Circle Area - Intro' Learn online: app.mobius.academy/math/units/geometry_circles_area_intro/ |
1
| Find the area using the formula A = πr² and r = d/2 |
a
| 12.57 |
b
| 32 |
c
| 175.93 |
d
| 16 |
e
| 50.27 |
f
| 25.13 |
2
| Find the area using the formula A = πr² and r = d/2 |
a
| 15.71 |
b
| 25 |
c
| 201.06 |
d
| 78.54 |
e
| 254.47 |
f
| 31.42 |
3
| Find the area using the formula A = πr² and r = d/2 |
a
| 18.85 |
b
| 113.1 |
c
| 37.7 |
d
| 36 |
e
| 72 |
f
| 197.92 |
4
| Find the area using the formula A = πr² and r = d/2 |
a
| 18.85 |
b
| 9.42 |
c
| 9 |
d
| 28.27 |
e
| 18 |
f
| 113.1 |
5
| Find the area using the formula A = πr² and r = d/2 |
a
| 8 |
b
| 47.12 |
c
| 12.57 |
d
| 62.83 |
e
| 6.28 |
f
| 4 |
6
| Find the area using the formula A = πr² and r = d/2 |
a
| 6.28 |
b
| 1 |
c
| 2 |
d
| 37.7 |
e
| 3.14 |
f
| 18.85 |