Mensuration of Solid Shapes (I)

Mathematics SSS 1 Second Term

WEEK 6

Mensuration of Solid Shapes (I)

Performance Objectives

Students should be able to;

1. Give a formal definition of an arc, a sector and a segment of a circle
2. Compute the length of an Arc, the perimeter of a sector and the segment of a circle
3. Calculate the areas of a sector and the segment of a circle.

Length of an Arc of a circle

Content

ARC:

An arc of a circle is a part of the circumference of the circle.

Hence, an arc is a length or a distance along the circumference of a circle. It is never an area.

SECTOR:

A sector is a part of a fraction of a circle…