If you're new to yoga, there are a few poses that can be difficult at first. Triangle pose is one of those poses. But once you get the hang of it, triangle pose becomes much easier and your body will feel stronger for it. Keep practicing and read on to learn how to do triangle pose in this video guide. featuring our teacher Linh. The key to successfully doing triangle pose is using your core muscles while also engaging your back muscles so they work together with your abs.