Constructions

Mathematics J.S.S 2 Third Term

Theme: Mensuration and Geometry

Sub Theme: Shapes

WEEK 7

Constructions

Performance Objectives

Students should be able to;

1. Construct the triangle given:

1. Two sides and a secluded angles 
2. Find the distance between objects using scale drawing

2. Bisect any given angle.

Constructions of special angles

Content

A compass, a pencil, a protractor and a ruler are the needed mathematical instruments for this construction. Angles 30°, 45°, 60°, 90° and their multiples should be thoroughly revised as a prerequisite for the next stage.

 

Construction of Triangles

Two Sides and an Included Angle

An included angle is an angle holding two sides of the triangle.

Example 1:

A protractor, a pencil and a ruler are the needed mathematical…