Semiperimeter

Semiperimeter means half of the perimeter. Imagine you have a shape like a rectangle or a triangle. The perimeter is the distance around the edges of the shape. Now, semiperimeter is half of that distance. It's like cutting the distance into two parts and taking only one of the parts. It's like if you have a candy bar and you only eat half of it.

The semiperimeter is used to help find other measurements of the shape, like the area or the length of another side. For example, if you know the semiperimeter of a triangle, you can use it with the lengths of the sides to find the area of the triangle.

So, semiperimeter is a way to talk about a measurement of a shape that is half of the distance around its edges. It helps us to find other measurements and do math problems.