self Maths Puzzle

One side of a right triangle is 3/5 times of the hypotenuse and the sum of that side and hypotenuse is 16 cm. The circum radius of the triangle is

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self Other Question

if a is a real non-zero real no. and b is positive real no.
2ba^4 + ba^3 + a^2 + ba + 2b = ka^2
least possible value of k??????

1.2b+1
2.2b-1.
3.2-33b/4.
4.2+33b/4.
The diameter of a copper sphere is 6 cm. The sphere is melted and is drawn into a long wire of uniform circular cross section. If the length of the wire is 36 cm, The radius is