This math topic focuses on teaching how to determine the diameter of a circle from its radius. The questions test the student's ability to apply the basic geometric rule that the diameter is twice the radius. Each question is structured with a given radius and multiple choice answers, where students must identify the correct relationship between the radius and the diameter. This practice helps reinforce their understanding of circle geometry fundamentals.
Work on practice problems directly here, or download the printable pdf worksheet to practice offline.
Practice:
Circles - Rule to Find Diameter from Radius - Simple
Complete these online problems with 80% or 4 correct answers in a row. Results are immediate.
If 'r' is the radius, what is the diameter 'd'?
Circles - Rule to Find Diameter from Radius - Simple Worksheet
| Math worksheet on 'Circles - Rule to Find Diameter from Radius - Simple (Level 2)'. Part of a broader unit on 'Geometry - Circle Concepts - Intro' Learn online: app.mobius.academy/math/units/geometry_circles_concept_intro/ |
1
| If 'r' is the radius, what is the diameter 'd'? |
a
| d is half of r |
b
| Nothing, d and r are not related |
c
| d and r add to 90 |
d
| d and r add to 360 |
e
| d is the same as r |
f
| d is twice r |
2
| If 'r' is the radius, what is the diameter 'd'? |
a
| d is twice r |
b
| d and r add to 90 |
c
| Nothing, d and r are not related |
d
| d is the same as r |
e
| d and r add to 360 |
f
| d is half of r |
3
| If 'r' is the radius, what is the diameter 'd'? |
a
| d and r add to 90 |
b
| Nothing, d and r are not related |
c
| d and r add to 360 |
d
| d and r add to 180 |
e
| d is half of r |
f
| d is twice r |
4
| If 'r' is the radius, what is the diameter 'd'? |
a
| d and r add to 90 |
b
| d is half of r |
c
| d and r add to 180 |
d
| d is twice r |
e
| d and r add to 360 |
f
| Nothing, d and r are not related |
5
| If 'r' is the radius, what is the diameter 'd'? |
a
| d and r add to 180 |
b
| Nothing, d and r are not related |
c
| d and r add to 360 |
d
| d and r add to 90 |
e
| d is twice r |
f
| d is the same as r |
6
| If 'r' is the radius, what is the diameter 'd'? |
a
| d is the same as r |
b
| Nothing, d and r are not related |
c
| d and r add to 90 |
d
| d and r add to 360 |
e
| d is twice r |
f
| d and r add to 180 |
7
| If 'r' is the radius, what is the diameter 'd'? |
a
| d and r add to 360 |
b
| d and r add to 180 |
c
| d and r add to 90 |
d
| d is half of r |
e
| Nothing, d and r are not related |
f
| d is twice r |