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JEE MATHEMATICS MCQ: PROPERTIES OF TRIANGLES

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In a right angled triangle, RR is equal to
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Correct option: B
s−r2\frac{s-r}{2}
Option C (s−rs-r) is correct because in a right-angled triangle, the circumradius RR is related to the semi-perimeter ss and inradius rr by the formula R=s−r2R = \frac{{s-r}}{{2}}, which simplifies to R=s−rR = s - r when A=90.

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