Math, asked by narendarkaringula, 1 year ago

If perimeter of semi circular protractor is 54 cm then find diameter

Answers

Answered by Panzer786
3
Heya !!!



Perimeter or semi circle = 54




πR + 2R = 54



R ( π + 2) = 54




R ( 22/7 + 2) = 54



R ( 22 + 14/7) = 54



R × 36 = 54 × 7




R = 54 × 7 /36



R = 10.5




Radius = 10.5 cm



Therefore ,




Diameter = 2 × R = 2 × 10.5 = 21 cm




★ HOPE IT WILL HELP YOU ★

narendarkaringula: Right
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