Question

If a,b (b is greater than a)be the diameter of two concentric circles and 'c' be the length of a chord of a circle which is tangent to the other circle, then find the value of b in terms of a and c

Answer 1

for perfect answer you can follow me on Instagram on priyanshubunkar___rock. and this question is so easy

first you draw to concentrate circle with the radius of bigger circle is b and smaller circle as c

then draw a chord of bigger circle which touches smaller circle and now draw line from center to chord . then it bisect the chord

now you get two triangle so with Pythagoras you can solve the problem easily