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I have a question on plane geometry. The question is attached as photo.i would be very greatful if step by step solution could be provided. Thanking you in advance, Ziyad

I have a question on plane geometry. The question is attached as photo.i would be very greatful if step by step solution could be provided.
Thanking you in advance,
Ziyad

Question Image
Grade:11

1 Answers

Aditya Gupta
2080 Points
2 years ago
my answer is coming out to be r= 8/9
basically i formed two eqns (2 – r)^2= x^2+r^2
and (1+x)^2+r^2= (1+r)^2
here r is the radius of circle B and C.
let the intersection of circle B and C be called P. then the line through A s centre passing through P will also be Ds diameter. let this line intersect circle A at Q such that Q lies between P and As center. then we have taken QP=x. also radius of D is obviously 2. hence the eqns. kindly approve :)

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