https://diler.tube/videos/watch/813d4fce-bef8-4dd6-b302-6cdece018da5 Triangles are the building blocks of all other straight-edged shapes. They were used for hundreds of years to create accurate maps and GPS today still works using trigonometry. Even the pixels on phones and screens use trigonometry.We need to know these things so that we can work out exact lengths of sides of triangles or how big certain angles are in triangles. There are 3 main functions in trigonometry: These functions are just ratios between sides and angles on right-angle triangles. So we need to firstly know which side is the hypotenuse, which is the opposite and which is the adjacent. The hypotenuse is the longest side and is always opposite the right-angle. Sat, 14 Nov 2026 00:37:49 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://diler.tube https://diler.tube/lazy-static/avatars/f58b270a-6076-478a-ad43-3888a532ecb4.png https://diler.tube/videos/watch/813d4fce-bef8-4dd6-b302-6cdece018da5 All rights reserved, unless otherwise specified in the terms specified at https://diler.tube/about and potential licenses granted by each content's rightholder.