Question

the perimeter of a rectangle is 160 m. if it is 10 m wide find its area

Answer 1

Width of rectangular garden = 10 m

Perimeter of garden = 160 m

=> 2 (Length +Width) = 160

=> Length + 10 = 80

=> Length = 70 m


Area of garden = Length *Width
= 70 * 10
= 700 m^2

Answer 2

Perimeter=2(l+b)

160=2(l+10)
160 = 2l+20
160-20=2l
140=2l
140/2=l
70m



area = l×b

=10×70
700m2


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