document.write( "Question 979530: how do you find the perimeter of a shaded region of a circle \r
\n" ); document.write( "\n" ); document.write( "the shaded region is 140 degrees
\n" ); document.write( "the area of the shaded region is 126π \n" ); document.write( "

Algebra.Com's Answer #600822 by AnlytcPhil(1806) $\"\"$ $\"About$

You can put this solution on YOUR website!

\n" ); document.write( "

\r\n" );
document.write( "The whole figure is a sector of a circle. The area of a sector of a circle\r\n" );
document.write( "is given by the formula:\r\n" );
document.write( "\r\n" );
document.write( " where q is in radians.\r\n" );
document.write( "\r\n" );
document.write( "We convert q = 140° to radians:\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "Multiply both sides by 18\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "Divide both sides by 7p\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "The length of the arc is found by the formula\r\n" );
document.write( "\r\n" );
document.write( " where q is in radians.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "The perimeter is made up of two radii and the arc at the top:\r\n" );
document.write( "\r\n" );
document.write( "Perimeter = \r\n" );
document.write( "\r\n" );
document.write( "Edwin

\n" ); document.write( "

\n" );