Question

i) A square grassy plot is of side 100 metre. It has a gravel path 10 metres wide all round it on the inside. Find the area of the path

Answer 1

the gravel path wide 10 metres area side multiply side 10 multiply 10 100 metres

Answer 2

Outer side of the square grassy plot = 100m

Outer area of the square grassy plot = side× side

Outer area of the square grassy plot= 100×100 = 10000 m²

Width of the gravel path = 10 m

Inner side of the square grassy plot = 100- (2 x 10)

= 100-20= 80 m


Inner area of square grassy plot = 80× 80

= 6400 m²

Area of the gravel path = Outer area of the grassy plot - inner area of the grassy plot

Area of the gravel path = 10000 - 6400

Area of the gravel path= 3600 m²

Hence, the area of the path = 3600 m²

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