In the given figure, a circle is inscribed in a quadrilateral ABCD in which B-90 IT AD 17 cm, AB 20

In the given figure, a circle is inscribed in a quadrilateral ABCD in which B-90 IT AD 17 cm, AB 20 cm and DS-em then find the radius of the circle
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[@ztj_000]

If all angles are equal and two adjacent |__s sides are equal then it is a square simple thanks 🙏

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[@PlusMinusInstitute]

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[@SIDORAKI2.O]

Sir do we have to mention that opqb is a square because at last we get QB OR PB =6cm so how to conclude can we write that it is square therefore all sides equal and r=6cm

[@PlusMinusInstitute]

Because three of its angle are 90 each......

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Ok

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Standard

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Lekin sir sample paper me to alg paper Diya h 2023 ka

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Aur previous year book me bhi oswal ki

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This is previous year paper .....

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Set alag hoga oswal mei

[@almii1039]

Sir why would the angle at the centre be 90

[@PlusMinusInstitute]

Because OPQB IS A SQUARE
ALL THE THREE ANGLE OUT OF 4 WILL BE 90 ...... SUM OF ANGLES WILL BE 360
SO THE ANGLE AT CENTER ALSO BE 90

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