document.write( "Question 135399: The entrance to a tent is the shape of an equilateral triangle. If the base of the tent is 18 feet wide, then how tall is the tent? \n" ); document.write( "
Algebra.Com's Answer #99208 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
The entrance to a tent is the shape of an equilateral triangle. If the base of the tent is 18 feet wide, then how tall is the tent?
\n" ); document.write( "-------------------------
\n" ); document.write( "Draw the equilateral triangle.
\n" ); document.write( "Draw a perpendicular bisector from the top vertex to the base.
\n" ); document.write( "You now have two right triangles.
\n" ); document.write( "Use Pythagoras to solve for the height.
\n" ); document.write( "EQUATION:
\n" ); document.write( "h^2 + 9^2 = 18^2
\n" ); document.write( "h^2 = 18^2 - 9^2
\n" ); document.write( "h^2 = 243
\n" ); document.write( "height = sqrt243 = 15.59 feet
\n" ); document.write( "==============================
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "
\n" );