Question

A rectangular plot 30 m long and 18 m wide is to be covered with grass leaving 2.5 m all around it. Find the area to be laid with grass.

Answer 1

Answer:

Step-by-step explanation:area of big rectangle = 30×18 = 540m^2

leave 2.5 m each side

means 2 × 2.5 = 5m

substract 5m from each side

25m× 13m= 325m^2 = area of grass

Answer 2

Area of rectangle=

$length \times breadth = 30 \times 18 \\ = 540 {m}^{2}$

Area of rectangle which will be left=

$30 \times 2.5 \times 4 \\ = 300 {m}^{2}$

Area to be laid with grass= 540-300

. = 240 m^2

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