This math topic focuses on learning how to find the radius of a circle from its diameter. It is intended for those beginning to explore the area of circles within geometry. Problems require students to identify the correct radius given images of circles with marked diameters, providing multiple choice answers for selection. The skill of deducing the radius, half the length of the diameter, is fundamental in understanding basic geometric properties of circles.
Work on practice problems directly here, or download the printable pdf worksheet to practice offline.
Practice:
Circles - Find Radius from Diameter
Complete these online problems with 80% or 4 correct answers in a row. Results are immediate.
Find the radius of the circle that has the given diameter
Circles - Find Radius from Diameter Worksheet
| Math worksheet on 'Circles - Find Radius from Diameter (Level 3)'. Part of a broader unit on 'Geometry - Circle Area - Intro' Learn online: app.mobius.academy/math/units/geometry_circles_area_intro/ |
1
| Find the radius of the circle that has the given diameter |
a
| 8.5 |
b
| 7.5 |
c
| 10.5 |
d
| 9.5 |
e
| 11.5 |
2
| Find the radius of the circle that has the given diameter |
a
| 6.5 |
b
| 7.5 |
c
| 4.5 |
d
| 5.5 |
e
| 3.5 |
3
| Find the radius of the circle that has the given diameter |
a
| 12 |
b
| 10 |
c
| 11 |
d
| 14 |
e
| 13 |
4
| Find the radius of the circle that has the given diameter |
a
| 10.5 |
b
| 11.5 |
c
| 12.5 |
d
| 13.5 |
e
| 14.5 |
5
| Find the radius of the circle that has the given diameter |
a
| 15.5 |
b
| 13.5 |
c
| 12.5 |
d
| 11.5 |
e
| 14.5 |
6
| Find the radius of the circle that has the given diameter |
a
| 12 |
b
| 9 |
c
| 10 |
d
| 8 |
e
| 11 |
7
| Find the radius of the circle that has the given diameter |
a
| 10 |
b
| 13 |
c
| 12 |
d
| 11 |