Question

Area of Paths
Example 1. In a rectangular garden which measures 20 m
by 15 m a path of 2 m broad runs inside. Find the area of the
rectangular path​

Answer 1

Answer:

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Answer 2

Answer:

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Explanation:

• The distance around a plane figure is called its perimeter.

• The amount of surface enclosed within the boundary of a figure is called its area.

• Basic units for measuring perimeter of a geometrical figure are metre and centimetre.

• Basic units for measuring area of a geometrical figure are square metre and square centimetre.

• Here, the question is about rectangle.

• Let the length and breadth of the rectangle be "L" and "B" respectively.

• Perimeter of a rectangle = 2 (L + B)

• Area of a rectangle = L × B

• Area, however, is always measured in square units.

______________________________

▶ RECTANGULAR FIELD ◀

Length = 20 m

Breadth = 16 m

Area = (20×16) m² = 320 m²

▶INNER LAWN ◀

Length = {20-(1.5+1.5)} m = 17 m

Breadth = {16-(1.5+1.5)} m = 13 m

Area = (17×13) m² = 221 m^2

THE AREA OF THE INNER LAWN IS 221 SQUARE METRE.