Question

Two fields have the same perimeter one is the square of side 72m and another is a rectangle of lenght 80m.which plot has the greater area and by how much ?

Answer 1

Perimeter is same so
4(72)=2(80+b)
288=160+2b
128=2b
64=b
area of rectangle =80*64
5120
area of square=72*72=5184
area of square is more than rectangle
by 5184-5120=64

Answer 2

hey
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•perimeter of square = 4×side
= 72×4=288

•perimeter of square = perimeter of rectangle(given )

288= 2×(80+b)
288 = 160+2b
288-160=2b
128/2 = b
b =64m

•area of rectangle = L×B
=64×80
=5120

•area of square= side×side
= 72×72=5184

area of square is greater by (5184-5120)=64m

hope helped
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