Page 216 - New Medley 5 Semester 1

Competencies
C-2.1, C-2.4, C-3.4,
6 Perimeter, Area and Volume
C-3.5, C-3.6, C-3.7

In class IV we learnt about perimeter and area.

Now we shall learn more about it and about volume.

Before we go ahead let us recall what we had learnt in class IV.

Let us Recall

21st CENTURY SKILLS • Initiative and Self-direction

A. Find the perimeter of the following.
1. Triangle with sides 9 cm, 8 cm and 7 cm.

2. Quadrilateral with sides 11 cm, 12 cm, 13 cm and 16 cm.

3. Rectangle with adjacent sides 15 m and 11 m.

4. Square with side 13 m.
8 cm
5.
3 cm 6 cm

4 cm 5 cm

B. Find the area of the following.

1. Square with side 5 cm.

2. Rectangle with sides 5 m and 10 m.

Perimeter

In Class IV, we have learnt that the perimeter of a closed figure is the

total length of its boundary. In order to find the perimeter, we add the

length of each side of polygons like triangle, quadrilateral, etc.

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