If the perimeter of semicircular protractor is 108cm ,then find the diameter of the protractor
Answers
Answered by
5
Let the radius of the protactor be r
Now
Perimeter of the protactor= πr+2r
πr+2r=108
(22/7)r+2r=108
22r+14r=108×7
36r=108×7
r = (108×7)/36
r = (12×7)/4
r = 3×7
r = 21cm
Therefore radius of the protactor is 21cm
Diameter of the protactor is 42cm
Hope this helps:)
Now
Perimeter of the protactor= πr+2r
πr+2r=108
(22/7)r+2r=108
22r+14r=108×7
36r=108×7
r = (108×7)/36
r = (12×7)/4
r = 3×7
r = 21cm
Therefore radius of the protactor is 21cm
Diameter of the protactor is 42cm
Hope this helps:)
Mush2002:
Do Mark as brainliest;p
Similar questions