Right angle triangles are used in real life scenarios everyday. You may not even realise when you use them. Some scenarios when you use them include, measurements, geometry, art and many more. You also use the Pythagoras Theorem a lot for instance road trips. "Let’s say two friends are meeting at a playground. Mary is already at the park but her friend Bob needs to get there taking the shortest path possible. Bob has two way he can go - he can follow the roads getting to the park - first heading south 3 kilometres , then heading west 4 kilometres . The total distance covered following the roads will be 7 miles. The other way he can get there is by cutting through some open fields and walk directly to the park. If we apply Pythagoras's theorem to calculate the distance you will get: 32+42= y2 25=y2 √25=√y 5=y Walking through the field will be 2 kilometres shorter than the other root.