document.write( "Question 119245: Find the measure of each unknown angle \n" ); document.write( "
Algebra.Com's Answer #87336 by jim_thompson5910(35256)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "Remember, supplementary angles add to 180. So \"x%2B3x-22=180\" these angles are the bottom left angles\r
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\n" ); document.write( "\n" ); document.write( "\"x%2B3x-22=180\" Start with the given equation\r
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\n" ); document.write( "\n" ); document.write( "\"4x-22=180\" Combine like terms on the left side\r
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\n" ); document.write( "\n" ); document.write( "\"4x=180%2B22\"Add 22 to both sides\r
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\n" ); document.write( "\n" ); document.write( "\"4x=202\" Combine like terms on the right side\r
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\n" ); document.write( "\n" ); document.write( "\"x=%28202%29%2F%284%29\" Divide both sides by 4 to isolate x\r
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\n" ); document.write( "\n" ); document.write( "\"x=101%2F2\" Reduce\r
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\n" ); document.write( "\n" ); document.write( "Answer:\r
\n" ); document.write( "\n" ); document.write( "So our answer is \"x=101%2F2\" (which is approximately \"x=50.5\" in decimal form)\r
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\n" ); document.write( "\n" ); document.write( "Now plug in \"x=50.5\" into \"3x-22\" to find the angle \r
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\n" ); document.write( "\n" ); document.write( "\"3%2850.5%29-22\" Plug in \"x=50.5\" \r
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\n" ); document.write( "\n" ); document.write( "\"129.5\" Simplify\r
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\n" ); document.write( "\n" ); document.write( "So the first interior angle \"3x-22\" is 129.5 degrees\r
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\n" ); document.write( "\n" ); document.write( "Now plug in \"x=50.5\" into \"2x-10\" to find the angle \r
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\n" ); document.write( "\n" ); document.write( " \"2%2850.5%29-10\" Plug in \"x=50.5\" \r
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\n" ); document.write( "\n" ); document.write( " \"91\" Simplify\r
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\n" ); document.write( "\n" ); document.write( "So the second interior angle \"2x-10\" is 91 degrees\r
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\n" ); document.write( "\n" ); document.write( "Now subtract that answer from 180 to solve for the exterior angle y\r
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\n" ); document.write( "\n" ); document.write( "\"180-91=89\"\r
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\n" ); document.write( "\n" ); document.write( "So \"y=89\"\r
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\n" ); document.write( "\n" ); document.write( "Now \"x=50.5\" into \"x%2B15\" to find the angle \r
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\n" ); document.write( "\n" ); document.write( " \"50.5%2B15\" Plug in \"x=50.5\" \r
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\n" ); document.write( "\n" ); document.write( " \"65.5\" Simplify\r
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\n" ); document.write( "\n" ); document.write( "So the third interior angle \"x%2B15\" is 65.5 degrees\r
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\n" ); document.write( "\n" ); document.write( "Now subtract that answer from 180 to solve for the exterior angle z\r
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\n" ); document.write( "\n" ); document.write( "\"180-65.5=114.5\"\r
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\n" ); document.write( "\n" ); document.write( "So \"z=114.5\"\r
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\n" ); document.write( "\n" ); document.write( "Since the sum of the 4 angles in any quadrilateral is 360 degrees, this means \r
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\n" ); document.write( "\n" ); document.write( "Angle1+Angle2+Angle3+Angle4=360\r
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\n" ); document.write( "\n" ); document.write( "\"129.5%2B91%2B65.5%2Bw=360\" Plug in the given info. These are the angles that were previously solved for.\r
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\n" ); document.write( "\n" ); document.write( "\"286%2Bw=360\" Combine like terms\r
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\n" ); document.write( "\n" ); document.write( "\"w=360-286\"Subtract 286 from both sides\r
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\n" ); document.write( "\n" ); document.write( "\"w=74\" Combine like terms on the right side\r
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\n" ); document.write( "\n" ); document.write( "Now subtract that answer from 180 to solve for the exterior angle u\r
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\n" ); document.write( "\n" ); document.write( "\"180-74=106\"\r
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\n" ); document.write( "\n" ); document.write( "So \"u=106\"\r
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\n" ); document.write( "\n" ); document.write( "So our answer is \"w=74\" \r
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\n" ); document.write( "\n" ); document.write( "So the fourth interior angle w is 74 degrees\r
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\n" ); document.write( "\n" ); document.write( "Summary:\r
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\n" ); document.write( "\n" ); document.write( "So we have the following angles:\r
\n" ); document.write( "\n" ); document.write( "\"x=50.5\", \"3x-22=129.5\" \"2x-10=91\", \"y=89\", \"x%2B15=65.5\", \"z=114.5\", \"w=74\" and \"u=106\"\r
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