document.write( "Question 325141: one of the equal sides of an equilateral triangle is 5 cm long. What is the area of the triangle? \n" ); document.write( "

Algebra.Com's Answer #232831 by vleith(2983) $\"\"$ $\"About$

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Sides of an equilateral triangle are all of equal length. In this case, 5 cm
\n" ); document.write( " $\"AreaOfTriangle+=+%28bh%29%2F2\"$
\n" ); document.write( "So, since all sides are 5, we need to find h.
\n" ); document.write( "Draw an equaliateral triangle with b across the bottom.
\n" ); document.write( "Drop a perpendicular line from the 'peak' down to the base.
\n" ); document.write( "That will result in two smaller right triangles. Each of those triangles has sides of length 2.5, 5 and h.
\n" ); document.write( "Use pathagorean theorem to solve for h
\n" ); document.write( " $\"h%5E2+=+5%5E2+%2B+%282.5%29%5E2\"$
\n" ); document.write( "You do the math.
\n" ); document.write( "Once you have h, then plug that value into the Area formula above.\r
\n" ); document.write( "\n" ); document.write( "Let me know if you can't solve this now \n" ); document.write( "

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