Question

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Answer 1

Answer:

Step-by-step explanation

so u have to use the pythaguras theorem

a2-b2=c2

so, first take half the triangle

if ab = 32 then cb =1/2 so 32/2=16

and the radius is 20 which basicalyy means half a diameter o jb is 20

so 12^2+16^2 =c2

144 - 256= 112

112/2 =56

Answer 2

Answer:

In classical geometry, a radius of a circle or sphere is any of the line segments from its center to its perimeter, and in more modern usage, it is also their length. The name comes from the Latin radius, meaning ray but also the spoke of a chariot wheel.