document.write( "Question 174624: A trapezoid is a quadrilateral with only one pair of parallel sides called the bases of the trapezoid. The formula for the area of a trapezoid is A= h/2(b^1+b^2) where h represents the measure of the altitude to the bases, and b^1 and b^2 represent the measures of the bases. Find the area of a trapezoid if h= 5.25 cm, b^1 = 12.75 cm, and b^2 = 9.50 cm. Express your answer to the number of significant digits determined by the given data. \n" ); document.write( "
Algebra.Com's Answer #129666 by MathLover1(20849)\"\" \"About 
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\"A=+h%2F2%28b%5E1%2Bb%5E2%29+\"
\n" ); document.write( "\"A=+5.25+cm%2F2%2812.75+cm%2B9.50+cm%29\"
\n" ); document.write( "\"A=+2.625cm%2822.25cm%29+\"
\n" ); document.write( "\"A=+58.40625cm%5E2\"
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