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SubjectPaid lesson

Geometric construction iv

ClassNotes Team 1 MIN READUPDATED 13 JUN 2026

BASIC SCIENCE JSS2 first term

Sub-Theme: Safety

WEEK 10

Geometric construction IV

Performance objectives

Students should be able to:

  1. Define identify and construct regular and irregular polygon

Content

Polygon

A closed plane figure made up of several line segments that are joined together. The sides do not cross each other. Exactly two sides meet at every vertex.

There are two main types of polygon - regular and irregular.

A regular polygon has equal length sides with equal angles between each side. Any other polygon is an irregular polygon, which by definition has unequal length sides and unequal angles between sides.

PentagonThe closed figure which is formed by five straight lines is known as a pentagon.

HexagonThe six-sided polygon is…