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    The bases of a trapezoid are 9 and 21 inches. The slants are 14 inches. What is the height expressed in simplified radicals

    +1  Views: 619 Answers: 1 Posted: 11 years ago

    1 Answer

    the formula is:                                                                                                                                                     


    h=square root(-a+b+c+d)(a-b+c+d)(a-b+c-d)(a-b-c+d)over 2(b-a)


    substitute your numbers for a,b,c,and d to reach an answer.



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