What is always in front of you but can’t be seen??

The future

I hope this helps.

Air

Explanation:

Since its always there but we cannot see it

“the iliad” (gr: “iliás”) is an epic poem by the ancient greek poet homer, which recounts some of the significant events of the final weeks of the trojan war and the greek siege of the city of troy (which was also known as ilion, ilios or ilium in ancient times).

6 units. ab and lo are congruent sides, and if ab= 6 units, then lo would be the same.