Yxcas's answer to Enqi's Primary 5 Maths Area & Volume Singapore question.

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Yxcas
Yxcas's answer
184 answers (A Helpful Person)
1st
Height of a triangle is drawn from the vertex (angle opposite the base) i.e. angle A down to meet the base of the triangle perpendicularly. Extend the base if required.

Hence answer is AF (option 2).