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Question

Find the area of a right-angled triangle, the radius of whose circumcircle measures 8 cm and the altitude drawn to the hypotenuse measures 6 cm.

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Solution

Let ABC be a right-angled triangle inside a circle having centre 'O'

Given, OA = OB = CC = 8 cm [OA, 0B and OC be the radius of circle]

Let AD be the altitude drawn from the opposite vertex to the hypotenuse

AD = 6 cm

Since, ABC is a right triangle right angled at A

A circle can be drawn which passes througthe h the vertices of ABC (Angle in a semi-circle is 90o)

Now, the Area of ABC = 12×base×height=12×BC×AD=12×(OB+OC)×AD=12×(8+8)×6=12×16×6=48 cm2


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