You take a survey in your school about favorite sports. The circle graph shows the percent of students who favored each sport. 75 students said that swimming was their favorite. How many students were surveyed?

is there answer choices?

answer: the angel abc is 30°,and the abc is a triangle where the angel bac is 90°

so ac is the half of 24=12ft,and from the pythagorean theorem we find ba

ba=√bc^2-ac^2=√576-144=√432=12√3ft

so bac is 12+12√3=12(1+√3)ft