ee1e8abd87
* feat(tools): add seed/solution restore script * chore(curriculum): remove empty sections' markers * chore(curriculum): add seed + solution to Chinese * chore: remove old formatter * fix: update getChallenges parse translated challenges separately, without reference to the source * chore(curriculum): add dashedName to English * chore(curriculum): add dashedName to Chinese * refactor: remove unused challenge property 'name' * fix: relax dashedName requirement * fix: stray tag Remove stray `pre` tag from challenge file. Signed-off-by: nhcarrigan <nhcarrigan@gmail.com> Co-authored-by: nhcarrigan <nhcarrigan@gmail.com>
41 lines
1.1 KiB
Markdown
41 lines
1.1 KiB
Markdown
---
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id: 5900f41e1000cf542c50ff30
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title: 问题177：整数角四边形
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challengeType: 5
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videoUrl: ''
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dashedName: problem-177-integer-angled-quadrilaterals
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---
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# --description--
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设ABCD为凸四边形，对角线为AC和BD。在每个顶点处，对角线与两侧中的每一侧形成一个角度，从而产生八个角度角。
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例如，在顶点A处，两个角度是CAD，CAB。我们称之为四边形，当以“整角四边形”度数度量时，所有八个角度角都具有整数值。整数角度四边形的示例是正方形，其中所有八个角度角都是45°。另一个例子是DAC = 20°，BAC = 60°，ABD = 50°，CBD = 30°，BCA = 40°，DCA = 30°，CDB = 80°，ADB = 50°。非相似整数角度四边形的总数是多少？注意：在计算中，如果计算出的角度在整数值的10-9范围内，则可以假定计算出的角度是整数。
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# --hints--
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`euler177()`应返回129325。
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```js
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assert.strictEqual(euler177(), 129325);
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```
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# --seed--
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## --seed-contents--
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```js
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function euler177() {
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return true;
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}
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euler177();
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```
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# --solutions--
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```js
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// solution required
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```
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