<?xml version="1.0" encoding="UTF-8" standalone="yes"?><oembed><version><![CDATA[1.0]]></version><provider_name><![CDATA[justpuzzles]]></provider_name><provider_url><![CDATA[https://justpuzzles.wordpress.com]]></provider_url><author_name><![CDATA[Teun Spaans]]></author_name><author_url><![CDATA[https://justpuzzles.wordpress.com/author/teunspaans/]]></author_url><title><![CDATA[Matchstick &#8211; triangles]]></title><type><![CDATA[link]]></type><html><![CDATA[<p><strong>Surface</strong><sup>***/*****</sup><br />
These 6 matches enclose an area with size 2 (2 standard triangles).<br />
Rearrange them so that:<br />
a) they enclose an area of exactly 4 triangles<br />
b) they enclose an area of exactly 6 triangles </p>
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