Question

In the given figure, circles with centres C and
D intersect at points P and Q. If AB is parallel
to CD and AB = 10 cm, then find the length of
CD​

Answer 1

Answer:

5

Step-by-step explanation:

we one that if you draw a perpendicular line from the centre to chord then that line will bisect that line so AM= MP and NP=NB

and we know that AB= AM+MP+NP+NB

AB= 2(MP+PN)---eq1

because AM=MP and NP=NB

and from the figure if you see

CDNM is a rectangle

so NM=CD

from eq1

NM= 10/2=5

so CD=5