Perimeter and Area of Plane Figures

In this topic, we will deal with collinear points. We will discuss when some given set of points are called collinear. In addition, we will go through some examples in which we have to check the collinearity of given points.

This topic teaches us how to find the area of typical quadrilateral. A four-sided, plane figure is known as a quadrilateral. A general quadrilateral can be split into two triangles by drawing one of its diagonals.

This topic explains that a trapezium is a quadrilateral in which a pair of sides is parallel but the other pair of opposite sides are non-parallel. The area of a trapezium is equal to product 12 and the sum of parallel sides and distance between them.

This topic teaches us how to find the area of a polygon. A pentagon is a five-sided polygon. It can be both regular and sporadic. A regular pentagon's sides and angles are equal to 108 degrees for each inner angle and its outer angle is equal to 72 degrees.