Qi Lin Po's answer to linda's Junior College 1 H2 Maths question.

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Qi Lin Po
Qi Lin Po's answer
12 answers (A Helpful Person)
1st
The height is the perpendicular to the plane of ABC
linda
Linda
7 years ago
thank you very much :)