If the perimeter of a semi-circular protractor is 72m, find the radius of protractor.
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Answered by
1
Answer:
Step-by-step explanation:
Let radius is r
πr+2r = 72
(22/7)r+2r = 72
(22r+14r)/7= 72
36r = 72/7
r =2/7
Answered by
0
Step-by-step explanation:
the perimeter of a semi circular is
72m radius,=72/2=36 .
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