Question

Two circle of radii 5cm and 3cm intersect at two points abd their distance between their centre is 4 cm find the length of the common chord

Answer 1

let a=5. b=3. c=4

s=a+b+c/2=12/2=6

s-a=1

s-b=3

s-c=2

then we apply heon s formula

√s(s-a)(s-b)(s-c)


then we can find area of triangle


then we can find height(radius. let)

then d =2r


then get answer