---
id: 5900f44e1000cf542c50ff5f
title: 'Problem 224: Almost right-angled triangles II'
challengeType: 5
forumTopicId: 301867
dashedName: problem-224-almost-right-angled-triangles-ii
---

# --description--

Let us call an integer sided triangle with sides a ≤ b ≤ c barely obtuse if the sides satisfy a2 + b2 = c2 - 1.

How many barely obtuse triangles are there with perimeter ≤ 75,000,000?

# --hints--

`euler224()` should return 4137330.

```js
assert.strictEqual(euler224(), 4137330);
```

# --seed--

## --seed-contents--

```js
function euler224() {

  return true;
}

euler224();
```

# --solutions--

```js
// solution required
```