Please do number 3 make sure to show all your work and round your answer to the nearest tenth if you can do number 4 please do it if not that’s okay I need number 3 mainly right now thank you

50.2450.24 in squared

Hello! i hope this
since the cosine is the ratio of the adjacent side to the hypotenuse, you can see that cos 60° = ½. answer. according to the property of cofunctions (topic 3), sin 30° is equal to cos 60°. sin 30° = ½.