Two white triangles on my screen

You may get better and prompt responses if you may kindly provide the iPhone Model that you have and the iOS version if it is known to you and re-post.

To improve my understanding of the phenomenon, it would be highly beneficial if you could share a full screenshot (Do not crop it). Visual representations carry a greater impact than written descriptions.

Please remember that this is a public forum, so when attaching a screenshot, please avoid including any personal credentials such as IP addresses, card details, email IDs, Apple IDs, IMEI numbers, serial numbers, phone numbers, order IDs, or any identifiable location information if you are sharing a map.

With the limited information that you have provided, It is hard to even guess the problems faced by you. 

You may get faster and better responses to your query by --> Writing an effective Apple Support Commun… - Apple ...

Please re-post with detail so that someone else can help.

"Two white triangles on my screen: Why was there two solid white triangles on the screen at the same time, one on the left up high and one on the right closer to mid screen my concern is the one on the right"

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Two White Triangles on an iPhone Screen:

Googling this, two white triangles on iphone this is provided: "usually indicates that your phone's GPS location services are actively being used by an app". So, are you using GPS with an app?

which model it is ??

Is your device updated to latest software ?

As mentioned by you ,the triangle images / spots on display might be due to software glitch and may be solved by resetting the device and updated to latest software.

Ensure you have taken backup before Erasing the device.