document.write( "Question 752164: HELLO, please Find the area of a triangle with sides 6.4 km, and 8.9 km and included angle 63° ? \n" ); document.write( "
Algebra.Com's Answer #457647 by rothauserc(4718)\"\" \"About 
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Find the area of a triangle with sides 6.4 km, and 8.9 km and included angle 63° ?\r
\n" ); document.write( "\n" ); document.write( "The solution requires the use of the Side Angle Side (SAS) formula for the area of a triangle:\r
\n" ); document.write( "\n" ); document.write( "SAS = (1/2)*(side1 * side2)*sine(angle)\r
\n" ); document.write( "\n" ); document.write( "SAS = (1/2)*(6.4 * 8.9) * sine(63)\r
\n" ); document.write( "\n" ); document.write( "SAS = (1/2)*(56.96)*(.89)\r
\n" ); document.write( "\n" ); document.write( "SAS = 28.48 * .89 = 25.3 square km\r
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