trig q (1 Viewer)

[yolo tengo]

apparently the answer is 21.6 (1 d.p) but like why can't i use the normal soh cah toa way in this question?

11. b. find, correct to 1dp, the lengths of the sides marked with pronumerals

 

[Average Boreduser]

apparently the answer is 21.6 (1 d.p) but like why can't i use the normal soh cah toa way in this question?

11. b. find, correct to 1dp, the lengths of the sides marked with pronumerals

bro u went from doing trig proofs using double angle, compound angle, etc to right angle triangles

 

[yolo tengo]

bro u went from doing trig proofs using double angle, compound angle, etc to right angle triangles

bro i forgot how to do this for a sec

 

[yolo tengo]

wait im so stupid i figured it out

 

[kkk579]

wait im so stupid i figured it out

huh is it not just 15/sin44 what
why cant u use soh cah toa there’s clearly a right angle there

 

[yolo tengo]

huh is it not just 15/sin44 what
why cant u use soh cah toa there’s clearly a right angle there

its bc i’m trying to find the hyp, so i had to like reciprocate it from 15/b to b/15 which eventually equals to 1/sin44