Advanced calculus questions

What is the missing reason in step 5? linear pair postulategivendefinition of complementary anglescongruent complements theorem

Is it true or false i’m trying to pass this test so i can leave school

Apinhole camera is made out of a light-tight box with a piece of film attached to one side and pinhole on the opposite side. the optimum diameter d(in millimeters) of the pinhole can be modeled by d=1.9[ (5.5 x 10^-4) l) ] ^1/2, where l is the length of the camera box (in millimeters). what is the optimum diameter for a pinhole camera if the camera box has a length of 10 centimeters