This is a math topic centered on learning and practicing the calculation of the area of a circle from its radius. It is a part of geometry, specifically the introductory components of determining a circle's area. The topic instructs students to calculate the area without using a calculator and encourages the estimation of pi as a number slightly more than 3. The topic provides multiple-choice questions with answer options to facilitate understanding and application of the formula for finding the area of a circle.
Work on practice problems directly here, or download the printable pdf worksheet to practice offline.
morePractice:
Circle from Radius
Complete these online problems with 80% or 4 correct answers in a row. Results are immediate.
Find the area without using a calculator. Remember that π is just a bit more than 3.
Earned ?
Area of a Circle from Radius Worksheet
| Math worksheet on 'Area of a Circle from Radius (Level 1)'. Part of a broader unit on 'Geometry - Circle Area - Intro' Learn online: app.mobius.academy/math/units/geometry_circles_area_intro/ |
| Find the area without using a calculator. Remember that π is just a bit more than 3. |
| 72 |
| 18.85 |
| 36 |
| 153.94 |
| 254.47 |
| 113.1 |
| Find the area without using a calculator. Remember that π is just a bit more than 3. |
| 25.13 |
| 125.66 |
| 16 |
| 50.27 |
| 175.93 |
| 32 |
| Find the area without using a calculator. Remember that π is just a bit more than 3. |
| 12.57 |
| 4 |
| 37.7 |
| 8 |
| 28.27 |
| 6.28 |
| Find the area without using a calculator. Remember that π is just a bit more than 3. |
| 31.42 |
| 50 |
| 197.92 |
| 25 |
| 201.06 |
| 78.54 |
| Find the area without using a calculator. Remember that π is just a bit more than 3. |
| 28.27 |
| 9 |
| 78.54 |
| 18 |
| 9.42 |
| 131.95 |
| Find the area without using a calculator. Remember that π is just a bit more than 3. |
| 3.14 |
| 1 |
| 78.54 |
| 12.57 |
| 2 |
| 6.28 |