Have you ever seen a special tool that can cut a piece of wood or another material at an angle? That tool is called a miter saw, and it helps to create precise and clean cuts.
The miter saw has a big blade that spins quickly, and you can move the blade up and down. You put the wood or material you want to cut onto a base, and then you can adjust the blade to cut the wood at the angle you need.
It's like when you make a paper snowflake by folding the paper and then cutting it just right. The miter saw helps you make precise cuts in your materials just like you would with the paper snowflake.
And because the miter saw can cut at a perfect angle each time, it makes it much easier to fit one piece of wood or material with another piece perfectly. This is why people who make things with wood or create custom furniture, like carpenters or cabinet makers, use a miter saw to create perfect cuts.