Question

In above figure the rectangle at the corner measures 4 cm x 8 cm. Select the option s
indicates the radius of the circle in cm.
(1) 20
(2) 24
(3) 16
(4) 08

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Answer 1

length= 8 cm

breadth= 4 cm

area of rectangle = l x b

8 x4 cm^2

32 cm^2

radius = 32/2

1 6

Answer 2

Answer:

r^2 = (r-8)^2 + (r-4)^2

r^2 = r^2 - 16r + 64 + r^2 - 8r + 16

By solving we get 2 values i.e r = 20 and 4.

So the radius of circle is 20 cm