We cannot take half of 9 people. The even numbers, then, are the numbers divisible by 2: 2, 4, 6, 8, and so on. The odd numbers are 1, 3, 5, 7, and so on. If you do not know half of some even number, you can find it by decomposing it mentally into two even numbers whose half you do know.
To draw a shape, line or angle accurately using a compass and straightedge (ruler). Sometimes you are also allowed to use a protractor and triangle.
In this section you will learn constructing angles. Construction in Geometry means to draw shapes, angles or lines accurately. In constructing-angles, mostly we use compass and ruler.Construction of Angles equal to a given angle Draw an angle of measure 70. Make a copy of it using ruler and compasses.n this section you will learn constructing angles. Construction in Geometry means to draw shapes, angles or lines accurately. In constructing-angles, mostly we use compass and ruler.