Erfana Beevee Binte Hassan Shariff's answer to stiles's Secondary 4 E Maths Singapore question.
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
Triangle OAB is a triangle with all 3 sides known and an unknown angle to find. So u can use the cosine rule. The angle you find here is non reflex angle AOB. Subtract this angle from 2pi to find the reflex angle. Hope this helps.
Date Posted:
1 month ago
360 Tutoring Program