What are similarities and differences that exist between all continuous linear and continuous exponential functions? Fank

Consider the proof. given: segment ab is parallel to line de. prove: what is the missing statement in step 5?

Si la base de un triángulo isósceles mide 70 m y el ángulo opuesto a ésta mide 58°; entonces ¿cuánto mide la altura de dicho triángulo? a) 21.87 m. b) 40.01 m. c) 43.74 m. d) 63.14 m.

15m is what percent of 60m; 3m; 30m; 1.5 km? the last one is km not m