If we configure multiple routing protocol like ospf, eigrp, rip how to choose router best path and how to check route

if we configure multiple routing protocol like ospf, eigrp, rip how to choose router best path and how to check route which we have to user.

The Router will check Ad value !!

Router will only display EIGRP routes.

Sir How to check route?

In order to slelect the best path, the router will first compare/check the AD of the routing protoocls and will prefer the one with the lower AD value. The default AD value for OSPF 110, EIGRP is 90 (internal routes) & 170 (external routes) and for RIP is 120.
So, the router will install the routes coming from EIGRP as it got the lowest AD of all.

We can check the routes on Cisco routers using the command:
R# show ip route

Hope this helps!
Thanks!