Qstnid -B-14- A Path Of Uniform Width, 3 M, Runs Around The Outside Of A Square Field Of Side 21 M. Find The Area Of The Path. - 20: Area Of Trapezium And A Polygon Class 8 Maths - Icse-viii-mathematics

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ICSE-VIII-Mathematics

20: Area of Trapezium and a Polygon Class 8 Maths

with Solutions - page 4

Qstn# B-14 Prvs-Qstn Next-Qstn

#14
A path of uniform width, 3 m, runs around the outside of a square field of side 21 m. Find the area of the path.
Ans : According to the given information the figure will be as shown alongside.
Clearly, length of the square field excluding path = 21 m.
Area of the square side excluding the path = 21× 21 = 441 m²Again, length of the square field including the path = 21 + 3 + 3 = 27 m
Area of the square field including the path = 27× 27 = 729 m²
Area of the path = 729 - 441 = 288 m²