Simply use the Shape Builder tool.
Select all and drag from the triangle to the shape below with the Shape Builder Tool. This will combine both shapes into one.
You could also select all and click the Unite button on the Pathfinder Panel (Window > Pathfinder)
This is a guess off the top of my head, since I don't know for sure. It probably has its origins in old film camera dials, specifically the "landscape" mode in fully automated/computerized cameras of the early 1990s.
I have an old Canon EOS 500 35mm SLR (from 1993) with a Landscape icon on the Mode dial. It doesn't look exactly identical, it has a ...
---EDIT after further research---
Apple Instructions - Apple has step-by step instructions on how the document icon works here.
I wasn't completely wrong. You're not supposed to export the whole thing, Apple does apply the page overlay in the newest OS, you just supply the asset pieces.
I don't do app development, so I could be wrong, but in ...
An RSS icon is specific and typically means an RSS feed.
Using the RSS icon for general "news" would be like using a USB icon for "connectivity" when you are actually referring to internet connectivity -- yes it's related, but the icon is very specific and typically means only one thing. The USB icon means USB connectivity, not simply ...
Let it be a generic TV news reader or a commentator with a microphone. Insert a snake tongue:
If it's an usual icon there's not much room even for this. But in bigger size you can also have treacherous eyes, big smiling mouth and a couple of long fangs.
You can't put cats and dogs and vaccines and princess Diana into an icon. You need something generic that covers the industry, not the various topics. Since most media is consumed online today, why not just show a newsfeed icon.