a retangular field measures 400m by 100m and a square field 200m by 200m

A -do the two fields have the same area?
B - which field requires more fencing and by how much?

5 answers

give me answer
400 x 100 = 40,000
200 x 200 = 40,000
Therefore, they are equal.
B. rectangle: Pr = 2L + 2W = 2*400 + 2*100 =
Square: Ps = 4S = 4*200 =
Pr - Ps = ?
Pr = Perimeter of rectangle.
Ps = Perimeter of square.
length of rectangle=400m
breadth of rectangle=100m
a) Area of rectangle=l×b
= 400×100
=40000m²
Side of square=200m
Area of square=(side)²
= (200)²
=40000m²
Yes, they have the same area.

b) perimeter of rectangle=2(l+b)
=2(400+100)
=1000cm
perimeter of square= 4×side
=4×200
=800cm
Hence, perimeter of rectangle is greater than that of square
So rectangle requires more fencing by 1000-800=200cm
rectangle requires more fencing by 200cm.
is this answer is correct?