document.write( "Question 1203116: The Pyramid of the Sun in Teotihuacan, Mexico, measures about 700 feet on each side of its square base and is about 210 feet high. Estimate the slope that one of its faces makes with the base.\r
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Algebra.Com's Answer #838414 by ikleyn(52810) $\"\"$ $\"About$

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document.write( "Consider the height of the pyramid and relate it to half of the base length.\r\n" );
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document.write( "This ratio is the tangent of the slope angle\r\n" );
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document.write( "    tan(a) =  =  =  =  = 0.6.\r\n" );
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document.write( "Hence, the slope angle is  a = arctan(0.6) = 30.96 degrees,  or about 31 degrees.\r\n" );
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