document.write( "Question 1103816: use the Pythagorean theorem to find the length of the missing side. then find the indicated trigonometric function of the given angle. give an exact answer with a rational denominator. find tan theta.
\n" ); document.write( "C=90 degrees B=theta a=8 b=7
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Algebra.Com's Answer #718540 by Theo(13342)\"\" \"About 
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your triangle is ABC.\r
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\n" ); document.write( "\n" ); document.write( "side a is opposite angle A.
\n" ); document.write( "side b is opposite angle B.
\n" ); document.write( "side c is opposite angle C.\r
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\n" ); document.write( "\n" ); document.write( "angle C is equal to 90 degrees, therefore side c is the hypotenuse of the right triangle.\r
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\n" ); document.write( "\n" ); document.write( "the length side a is 8 and the length of side b is 7.\r
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\n" ); document.write( "\n" ); document.write( "by pythagorus, the square of the hypotenuse is equal to the sum of the square of each leg.\r
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\n" ); document.write( "\n" ); document.write( "this means that c^2 = a^2 + b^2\r
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\n" ); document.write( "\n" ); document.write( "since a = 8 and b = 7, then c^2 = 8^2 + 7^2 = 64 + 49 = 113.\r
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\n" ); document.write( "\n" ); document.write( "take the square root of both sides of that equation to get c = plus or minus square root of 113.\r
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\n" ); document.write( "\n" ); document.write( "since the length of any side can't be negative, then c = square root of (113).\r
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\n" ); document.write( "\n" ); document.write( "you are given that angle B is equal to theta.\r
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\n" ); document.write( "\n" ); document.write( "the side opposite angle B is b.\r
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\n" ); document.write( "\n" ); document.write( "the side adjacent to angle B that is not the hypotenuse is a.\r
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\n" ); document.write( "\n" ); document.write( "the tangent of B is equal to opposite / adjacent.\r
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\n" ); document.write( "\n" ); document.write( "this is equal to side b / side a which is equal to 7/8\r
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\n" ); document.write( "\n" ); document.write( "the tangent of angle B is equal to 7/8.\r
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\n" ); document.write( "\n" ); document.write( "since angle B = angle theta, then that's the tangent of angle theta as well.\r
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\n" ); document.write( "\n" ); document.write( "a diagram of your triangle is shown below:\r
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