Geometry means Earth Measurement. It deals with polynomials; shapes to make it simplier, and also lines.  It also deals with the areas of a shape like "area of a triangle", "area of a trapezoid" etc. And also it deals with postulates and theorems.
Wow! Your explanation is long! Awesome!
Geometry means Earth Measurement
Geometry is a branch of mathematics that deals with shapes and their characteristics.
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Actually my explanation about geometry is short and small but terrible. Hehehe! Just kidding guys.