document.write( "Question 1150800: Land in the shape of an isosceles triangle has a base of 130 m. An altitude from
\n" ); document.write( "the vertex of one of the base angles of the triangle is 120 m. What is the area
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Algebra.Com's Answer #772266 by Edwin McCravy(20060) $\"\"$ $\"About$

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document.write( "The green line BD is the altitude drawn from vertex of base angle B, so BD is\r\n" );
document.write( "perpendicular to AC. So ADB is a right triangle, so by the Pythagorean theorem,\r\n" );
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document.write( "CDB is also a right triangle, so also by the Pythagorean theorem,\r\n" );
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document.write( "But since BC = AD + CD\r\n" );
document.write( "          BC = 50 + CD\r\n" );
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document.write( "Edwin

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