Question

A 5 m wide lawn is cultivated all along the outside of a rectangular plot measuring 90 m x 40 m. Find the total area of the lawn.​

Answer 1

Step-by-step explanation:

Length of inner rectangle =60m

Breadth of inner rectangle =30m

Thickness of lawn =5m

⇒ Length of outer rectangle =60+5+5=70m

Breadth of outer rectangle =30+5+5=40m

Area of lawn = Area of outer rectangle − Area of inner rectangle

=70×40−60×30

=2800−1800

=1000m

2

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