# Area of squares and Rectangles

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Subject:Mathematics

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Class: Pry 4

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Topic:Area

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Content

Area is the amount of space or surface covered by all the sides of that shape. We use â€˜squareâ€™ as the basic unit of area.The area of a square of side 2m covers an area of 4 square metre or 4cmÂ².similarly the area of a square with sides 3 centimetres long is 9 square centimetres or 9 cmÂ².

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Therefore,

Area of a square = L Ã— L (or Side Ã— Side)

Area of a rectangle=Length Ã—Breadth(that is LÃ—B for short)

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Examples1:

Find the area of a square with side 5cm.

Solution

Area of a square=SideÃ—Side

Given a side=5cm

Area=5cm Ã—5cm

Area=25cmÂ²

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Example2

Find the area of a rectangle,if its length is 12cm and its breadth is 8cm.

Solution

Length= 12cm

Breadth= 8cm

Area of a rectangle =length Ã— breadth

Area=12cm x 8cm=96cmÂ².

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Evaluation

1.Calculate the area of a square lawn of length 7cm.

2.Find the area of a rectangle with length 13cm and breadth 6cm.

3.Find the area of a square with side 8.9m.

4.Find the area of a rectangular field with length 14cm and breadth 8cm.