document.write( "Question 91408This question is from textbook Glencoe Algebra 1
\n" ); document.write( ": A stringer is a triangular piece of wood on which staircases are based. If the stringer makes a 30 degrees angle with the floor, what is the measure of the angle that the stringer makes with the vertical? \n" ); document.write( "

Algebra.Com's Answer #69014 by hard(12) $\"\"$ $\"About$

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You may not already know that every triangle is made up of 180 degrees. Knowing this makes the question much easier!
\n" ); document.write( "In the question it tells you that the measurement of one angle is 30 degrees.
\n" ); document.write( "And you should already know that the other angle along the bottom side is 90 degrees, or a right angle (because otherwise the stairs would not be sturdy and would rock back and forth when you went up them).
\n" ); document.write( "180 = Angle 1 + Angle 2 + Angle 3
\n" ); document.write( "180 = 90 + 30 + x
\n" ); document.write( "180 = 120 + x
\n" ); document.write( "60 = x
\n" ); document.write( "So, the third angle must measure 60 degrees.
\n" ); document.write( "Check your answer again, to make sure you didn't make any mistakes.
\n" ); document.write( "60 + 30 + 90 = 180
\n" ); document.write( "Your answer is correct! \n" ); document.write( "

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