If ∠GHJ≅∠IHJ and GJ=85, what is IJ?

GJ

Explanation:

when you have the GHJ and IHJ is beside each other they equal each other like G equals I and H equal H and J equal J because they are in the same order.

the precambrian aged rocks could be found in australia. australia is a region that has a lot of ancient civilization history from million years ago. in this region, there are a lot of recognizable fossils buried in its land which is considered a precambrian-aged rocks