Math, asked by Lavi8477, 11 months ago

Area of rectangle with perimeter equal to 12 units

Answers

Answered by Hiteshbehera74
0

Perimeter of rectangle=2(L+B)

12=2(L+B)

L+B=6

L=6-B

Area = L×B

=(6-B)B

Area(A) = 6B-B²

Derivating with respect to B,

0=6-2B

B=3

Therefore, L=6-B=6-3=3

Therefore, Area = 3×3 = 9

Answered by gdkedar1972
9

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