document.write( "Question 982458: sir, maam
\n" ); document.write( "good day pls help me with my homework pls i need to answer this in 3 hour because i am confused so that i cannot do it on my house pls help me \r
\n" ); document.write( "\n" ); document.write( "1.Two altitudes of an isosceles triangle areequal to 20 cm and 30 cm. Determine the baseangles of the triangle\\r
\n" ); document.write( "\n" ); document.write( "2.Two altitudes of an isosceles triangle areequal to 20 cm and 30 cm. Determine the baseangles of the triangle
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Algebra.Com's Answer #603300 by KMST(5328)\"\" \"About 
You can put this solution on YOUR website!
The area of a triangle is \"%281%2F2%29%28base%29%28altitude%29\" .
\n" ); document.write( "The sides of an isosceles triangle come in two lengths:
\n" ); document.write( "the length of the two congruent legs, and
\n" ); document.write( "the length of the other side, which we usually consider the base.
\n" ); document.write( "However, you can take any side of a triangle as the base,
\n" ); document.write( "and the perpendicular to that base from the other vertex is the altitude,
\n" ); document.write( "so, in that case,
\n" ); document.write( "\"20cm\" is the altitude to a base measuring \"B\"\"cm\" , and
\n" ); document.write( "\"30cm\" is the altitude to a base measuring \"b\"\"cm\" .
\n" ); document.write( "Calculating the area both ways, we get the same result, so
\n" ); document.write( "\"%281%2F2%29%2AB%2A20=%281%2F2%29%2Ab%2A30\"--->\"2B=3b\"--->\"B=%283%2F2%29b=1.5b\" .
\n" ); document.write( "Could the legs of the isosceles triangle measure \"B\"\"cm\" ?
\n" ); document.write( "If so, the triangle looks like this
\n" ); document.write( " and \"cos%28red%28theta%29%29=%280.5b%29%2F%281.5b%29=0.5%2F1.5=1%2F3\" ---> \"red%28theta%29=70.53%5Eo\" (rounded).
\n" ); document.write( "Could the legs of the isosceles triangle measure \"b\"\"cm\" ?
\n" ); document.write( " We would have an angle \"alpha\" such that
\n" ); document.write( "\"cos%28alpha%29=%280.5B%29%2Fb=0.5%2A%281.5b%29%2Fb=0.5%2A1.5=0.75\"--->\"alpha=41.41%5Eo\" (rounded).
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