Lennon Lim's answer to janice's Secondary 2 Maths Singapore question.

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Lennon Lim
Lennon Lim's answer
21 answers (A Helpful Person)
1st
Let the middle be point O,midpoint of AB be point M and midpoint of BC be point N.
Then use Pythagoras formula: a^2+b^2=c^2