Given that AP⎯⎯⎯⎯⎯⊥AB⎯⎯⎯⎯⎯, BQ⎯⎯⎯⎯⎯⊥AB⎯⎯⎯⎯⎯, and AP⎯⎯⎯⎯⎯≅BQ⎯⎯⎯⎯⎯, which of the following proves that O is the midpoint of AB⎯⎯⎯⎯⎯ and PQ⎯⎯⎯⎯⎯?

Which sum or difference identity would you use to verify that cos (180° - ∅) = -cos ∅? a. sin (α -β) = sin α cos β – cos α sin β b. cos (α -β) = cos α cos β – sin α sin β c. cos (α -β) = cos α cos β + sin α sin β d. sin (α + β) = sin α cos β + cos α sin β

100 points? me its important ‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️

Given that the images represent 4 steps in the construction of a line segment congruent to a given line segment, which is step 3 in the construction?