document.write( "Question 27542: What is the formula for finding the perimeter of a circle? And the perimeter of a semi-circle? \n" ); document.write( "
Algebra.Com's Answer #14987 by sdmmadam@yahoo.com(530)![]() ![]() ![]() You can put this solution on YOUR website! What is the formula for finding the perimeter of a circle? And the perimeter of a semi-circle?\r \n" ); document.write( "\n" ); document.write( "The formula for the perimeter or the circumference of a circle is (Pi times d) or (Pi times (2r)) = 2(Pi)r = 2 X (22/7) X r where r is the radius of the circle.And d is the diameter of the circle equal to twice the radius r \n" ); document.write( "that is d=2r \n" ); document.write( "Thus the formula for the perimeter of a circle is (22d/7) or (44r/7) where d is diameter and r the radius of the circle. \n" ); document.write( "And the perimeter of a semi circle is [(Pi)times radius] = half of the perimeter of the circle \n" ); document.write( "So formula for the perimeter of a semi circle is(11d/7) or (22r/7) \n" ); document.write( " |