4. Two plots of land have cach the same perimeter. One is a square of side
while the other is a rectangle whose length and breadth are 30 m and 20
m. Which of the plots has greater area and by how much?
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Answer:
Plots have same perimeter.
side of square field=64m
perimeter=64*4=256m
length of rectangular plot=70m
breadth= b
2(70+ b)=256
=>70+ b=>256/2=128
=> b=128-70
=> b=58 m
Area of square=64*64
=4096 m²
Area of rectangle=70*58
=4060 m²
area of square is more than rectangular by =4096-4060=36 m²
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