This tutorial going to show you how to add a new page on Joomla 3.7.x. By following the below steps you can add a new page to your Joomla site.
Go to Joomla Administrator page and log in
Go to Menus -> Main menu -> Add new menu item
Give a title for the menu
Click on the Select in the Menu Item type field
From the pop up window select Article -> Single Article
Go to Select Article * and Select the Article from the pop up window which need to be displayed on the new page.
Save the Menu after keeping the Status as Published.
That’s it you have added a New page to your Joomla site. View the site and check it