exam Maths Puzzle Numerical Ability

In cm., the bases of an isosceles trapezoid measure 15 and 9 and each of the nonparallel sides has length 5 cm. Find the length of an altitude.

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exam Other Question

please help me Im having trouble solving this problem y2=25 Explain in your own words how to reverse FOIL when factoring a polynomial of the form ax2 + bx + c when a = 1. Give an example with your explanation.