Someone mind helping me, please? (please don't send a link/file for me to download.)

*segment an is an altitude of right ? abc with a right angle at a. if ab = 2root 5 in and nc = 1 in, find bn, an, ac.

Julie begins counting backwards from 1000 by 2’s and at the same time tony begins counting forward from 100 by 3’s.   if they count at the same rate, what number will they say at the same time?

Which angle has the same measure as the dehedral angle formed by the orange face and the purple rectangle