Question

48.
ABC is a right angled triangle with BC = 6 cm and AB = 8 cm. A circle with centre
O is inscribed in AABC. The radius of the circle is
(A)
1 cm
(B) 2 cm
(C) 3 cm
(D) 4 cm

Answer 1

By Pythogoras Theorem

AC^2=AB^2+BC^2

AC^2=(8)^2+(6)^2

AC^2=64+36

AC^2=100

AC=RADIUS=10CM

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