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Quadrilateral ABCD is an isosceles trapezoid, with bases AB and CD. A circle is inscribed in the trapezoid, as shown below. (In other words, the circle is tangent to all the sides of the trapezoid.) The length of base AB is 2x and the length of base CD is 2y. Prove that the radius of the inscribed circle is √xy .

 Jan 21, 2021
 #1
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Try using the formula for the area of a trapezoid.

 Jan 21, 2021
 #2
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https://web2.0calc.com/questions/pls-help_118

 Jan 22, 2021

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