esharrk's answer to Theertha's Secondary 3 A Maths Singapore question.
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
![esharrk](https://ask.manytutors.com/assets/img/robot14.png)
The product of two perpendicular bisectors is -1
Date Posted:
4 years ago