If the perimeter of semicircular protractor is 108cm ,then find the diameter of the protractor.
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perimeter of semicircle=πr
given that πr=108cm
22/7×r=108cm
r=108×7/22
r=756/22
d=2r
diameter=2×756/22
1512/22
=68.72cm
given that πr=108cm
22/7×r=108cm
r=108×7/22
r=756/22
d=2r
diameter=2×756/22
1512/22
=68.72cm
harshitha8:
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