Is the classification for an instrument that produces sound by vibrating a string or strings stretched between two points

Find the area of dfg. round the answer to the nearest tenth. a. 5.3 square units b. 34.3 square units c. 420.0 square units d. 424.2 square units select the best answer from the choices provided a b c d

Im giving free points and brainiest to whoever gets here first lol

Making a person for art class wich one should i use? 1.sports girl2.flower/date girl3.grudge4.super hero