Question

6. A circle is inscribed in a quadrilateral ABCD. If AB = 6 cm, BC = 7 cm,
CD = 4 cm then find AD ?​

Answer 1

Step-by-Step Explanation:

Let P,Q,R,S be the points where the circle touches the quadrilateral .From a point out side of the circle  the two tangents to the circle are equal.

AP = AS,BP = BQ , CR = CQ , and DR = DS

Adding AP + BP + CR + DR = AS + BQ + CQ + DS

AB + CD = AD + BC

6 + 4 = AD + 7

AD = 3 cm .

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Answer 2

Answer:

AD is equal to 3 cm by AB+CD=BC+AD