Eric Nicholas K's answer to Ang Bi Jun's Secondary 2 Maths Singapore question.

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Eric Nicholas K
Eric Nicholas K's answer
3370 answers (Tutor Details)
1st
In red is the wanted variable.
J
J
2 months ago
Can be simplified to V/πr² - ⅔r. Use the answer your teacher prefers