Answer:
To set up a Wi-Fi connection on an Android phone, your friend can use the built-in "Settings" app. Here is how they can use it to connect to a wireless router:
On the home screen, swipe down from the top of the screen to open the Quick Settings panel.
Tap the "Wi-Fi" icon to turn on Wi-Fi.
In the list of available networks, tap the name of the wireless router that your friend wants to connect to.
If prompted, enter the password for the wireless router.
Tap "Connect" to establish the connection.
Once the connection is established, your friend's Android phone should be able to access the internet via the wireless router.
Step-by-step explanation: