This math topic focuses on understanding the relationship between the diameter and the radius of a circle. The problems require students to determine what is known about a circle's diameter given its radius, reinforcing the fundamental geometry concept that the diameter is twice the length of the radius. Each question is structured around a different circle, providing practice in applying this rule across various scenarios within the context of geometry at an intermediate introduction level.
Work on practice problems directly here, or download the printable pdf worksheet to practice offline.
Practice:
Circles - Rule to Find Diameter from Radius
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What is known about diameter ZRB given radius RB
Circles - Rule to Find Diameter from Radius Worksheet
| Math worksheet on 'Circles - Rule to Find Diameter from Radius (Level 1)'. Part of a broader unit on 'Geometry - Intermediate - Intro' Learn online: app.mobius.academy/math/units/geometry_intermediate_intro/ |
1
| What is known about diameter XMC given radius MC |
a
| XMC and MC add to 90 |
b
| XMC and MC add to 360 |
c
| XMC is the same as MC |
d
| XMC is half of MC |
e
| Nothing, XMC and MC are not related |
f
| XMC is twice MC |
2
| What is known about diameter NCD given radius CD |
a
| NCD is twice CD |
b
| Nothing, NCD and CD are not related |
c
| NCD and CD add to 90 |
d
| NCD is half of CD |
e
| NCD and CD add to 180 |
f
| NCD and CD add to 360 |
3
| What is known about diameter YBZ given radius BZ |
a
| YBZ is twice BZ |
b
| YBZ and BZ add to 90 |
c
| YBZ and BZ add to 180 |
d
| YBZ and BZ add to 360 |
e
| YBZ is half of BZ |
f
| YBZ is the same as BZ |
4
| What is known about diameter PNZ given radius NZ |
a
| PNZ and NZ add to 180 |
b
| PNZ is twice NZ |
c
| PNZ is the same as NZ |
d
| Nothing, PNZ and NZ are not related |
e
| PNZ and NZ add to 360 |
f
| PNZ is half of NZ |
5
| What is known about diameter NRD given radius RD |
a
| NRD is twice RD |
b
| NRD is the same as RD |
c
| NRD and RD add to 360 |
d
| NRD and RD add to 180 |
e
| Nothing, NRD and RD are not related |
f
| NRD and RD add to 90 |
6
| What is known about diameter PDM given radius DM |
a
| PDM and DM add to 360 |
b
| PDM is twice DM |
c
| Nothing, PDM and DM are not related |
d
| PDM is the same as DM |
e
| PDM is half of DM |
f
| PDM and DM add to 90 |
7
| What is known about diameter NMC given radius MC |
a
| NMC and MC add to 90 |
b
| Nothing, NMC and MC are not related |
c
| NMC and MC add to 180 |
d
| NMC is the same as MC |
e
| NMC is half of MC |
f
| NMC is twice MC |