Question

ABC is a right angled triangle right angled at B . A circle with centre O inscribed in the triangle . AB=8CM BC=6CM . Find the radius r of the circle

Answer 1

$Given, BC=6 and AB=8</p><p>using Pythagoras Theorem,</p><p>AC2=AB2+BC2</p><p>AC2=62+82</p><p>AC=10</p><p>Radius = Perimeter2×Area</p><p>Radius = 10+8+62×(21×6×8)</p><p>Radius = 2 cm</p><p></p><p>$

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