Darren Yeo's answer to Kessie Yeo's Secondary 3 A Maths question.

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Darren Yeo
Darren Yeo's answer
4 answers (Tutor Details)
1st
Add an extra point D in the graph to denote the base area of the triangle AD. This length is essentially "k"