Question

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Answer 1

Answer:

10 cm

Step-by-step explanation:

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Answer 2

Answer:

10 cm

Step-by-step explanation:

as the bc and ab are perpendiculer and the circle will pass through among all the points a,b,c, so the diameter will be the line created by a and c

So, ab^2+ bc^2= ac^2

or, ac= √(12^2+16^2)

‌‌‌‌so, ac=20cm

it's the diameter.

so, radius is =(20÷2)cm=10cm