Answer:
Radius | Diameter | Circumference
5m | 10cm | 31.4cm
30.5m | 61cm | 94.5cm(?)
- / 10m / 31.42m
7.626cm / - / 47.91cm
7ft / 14ft / -
Step-by-step explanation:1.
terms:
Diameter = dRadius = r
Circumference = c
Pi = p
Formulas:
d = 2r
r = d/2
c = 2pr
p = 3.14
- solve r if the given is c
r = c/2p
1.
given: r, missing: d and c
d = 2(5m)
d = 10m
c = 2(3.14)5m
c = 31.42m
2.
given: d, missing r and c
r = 15.25cm/2
r = 7.625cm
c = 2(3.14)7.625cm
c = 47.91cm
3.
given: c, missing r and d
r = 47.91ft/2(3.14)
r = 47.91ft/6.28
r = 7ft
d = 2(7ft)
d = 14ft
:D
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Answers & Comments
Answer:
Radius | Diameter | Circumference
5m | 10cm | 31.4cm
30.5m | 61cm | 94.5cm(?)
Answer:
- / 10m / 31.42m
7.626cm / - / 47.91cm
7ft / 14ft / -
Step-by-step explanation:1.
terms:
Diameter = d
Radius = r
Circumference = c
Pi = p
Formulas:
d = 2r
r = d/2
c = 2pr
p = 3.14
- solve r if the given is c
r = c/2p
1.
given: r, missing: d and c
d = 2r
d = 2(5m)
d = 10m
c = 2pr
c = 2(3.14)5m
c = 31.42m
2.
given: d, missing r and c
r = d/2
r = 15.25cm/2
r = 7.625cm
c = 2pr
c = 2(3.14)7.625cm
c = 47.91cm
3.
given: c, missing r and d
r = c/2p
r = 47.91ft/2(3.14)
r = 47.91ft/6.28
r = 7ft
d = 2r
d = 2(7ft)
d = 14ft
:D