Question

X square + Y square is equal to 25 then find the centre and radius of a circle
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Answer 1

Answer:

let x = radius of a circle = y ...........(1)

x2 + y2 = 25 ..................eq (1)

y2 + y2 = 25

2y2 = 25

y2=25÷2

y2= 12.5

y = root 12.5

y = 3.53 .......... (2)

let put 2 in in eq (1)

x2 + y2 =25

x2 + (3.53)2 = 25

x2 + 12.4609 = 25

x2 = 25 - 12.4609

x2 = 12.5391

x = root 12.5391

x = 3.541

where x = 3.5 ... (r)

y = 3.5 ... (c)