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gikf 7d9496e52c fix(curriculum): clean-up Project Euler 361-380 (#43002)
* fix: clean-up Project Euler 361-380

* fix: improve wording

Co-authored-by: Sem Bauke <46919888+Sembauke@users.noreply.github.com>

* fix: remove unnecessary paragraph

* fix: corrections from review

Co-authored-by: Tom <20648924+moT01@users.noreply.github.com>

Co-authored-by: Sem Bauke <46919888+Sembauke@users.noreply.github.com>
Co-authored-by: Tom <20648924+moT01@users.noreply.github.com>
2021-07-29 12:48:17 -07:00

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Markdown

---
id: 5900f4e11000cf542c50fff4
title: 'Problem 373: Circumscribed Circles'
challengeType: 5
forumTopicId: 302035
dashedName: problem-373-circumscribed-circles
---
# --description--
Every triangle has a circumscribed circle that goes through the three vertices. Consider all integer sided triangles for which the radius of the circumscribed circle is integral as well.
Let $S(n)$ be the sum of the radii of the circumscribed circles of all such triangles for which the radius does not exceed $n$.
$S(100) = 4\\,950$ and $S(1\\,200) = 1\\,653\\,605$.
Find $S({10}^7)$.
# --hints--
`circumscribedCircles()` should return `727227472448913`.
```js
assert.strictEqual(circumscribedCircles(), 727227472448913);
```
# --seed--
## --seed-contents--
```js
function circumscribedCircles() {
return true;
}
circumscribedCircles();
```
# --solutions--
```js
// solution required
```