Ask Singapore Homework?
Upload a photo of a Singapore homework and someone will email you the solution for free.
See 1 Answer
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
DB is a vertical length (drone directly vertically above B) while BC is on horizontal ground, so angle DBC is 90 degrees (vertical meets horizontal).
We view the triangle in a different direction from the ground ABC, and instead look at the triangle DBC involving a vertical height.
We view the triangle in a different direction from the ground ABC, and instead look at the triangle DBC involving a vertical height.
Date Posted:
5 years ago
thankyou!