## Ask Singapore Homework?

Upload a photo of a Singapore homework and someone will email you the solution for free.

## Question

Secondary 1 | Maths

** One Answer Below **

Anyone can contribute an answer, even non-tutors.

**Answer This Question**

Someone has already helped me with this question. But, I don't understand why the breadth of the last rectangle=circumference of quadrant=pi

Thanks

Also, the pi here has nothing to do with the general formula, it just that the circumference of the quadrant fits nicely with the straight line of the rectangle.

The circumference of the quadrant is pi.

### See 1 Answer

*done*{{ upvoteCount }} Upvotes

*clear*{{ downvoteCount * -1 }} Downvotes