If an area in the form of a a circle is to be roped off by rope 10m [meter] long , what will be the radius of thi area ? round of you awnser two decimal place wichi the crrect awser it is A 1.28m or B 1.59 or C . 2.56 or D.3.18m

jlo2ni5x 2022-07-31 Answered
If an area in the form of a a circle is to be roped off by rope 10m [meter] long , what will be the radius of thi area ? round of you awnser two decimal place wichi the crrect awser it is A 1.28m or B 1.59 or C . 2.56 or D.3.18m
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Answers (2)

Kaiden Weeks
Answered 2022-08-01 Author has 14 answers
the circumference of a circle is C = 2 π r
you are told C=10m
thus 10 = 2 π r
now solve for r:
r = 10 / ( 2 π )
r = 1.59 m
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Brenton Dixon
Answered 2022-08-02 Author has 5 answers
2 π r = perimeter of a circle
since we have the perimeter (10 m) of this circle we can jus plugin 10 for the perimeter and solve for r:
10 = 2 π r
π r = 5
r = 5 π
r=1.59
so B is the correct answer
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