Question

Find the dimension of a rectangular park whose perimeter is 60m and area 2000m square.

Answer 1

Answer:

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Step-by-step explanation:

2 (l+b) = 60

l + b = 30

lb = 2000

∴ b = 2000/l

⇒ I² - 30I + 2000 = 0

  I²  - 20I - 10I + 2000 = 0

I (I -20) - 10 (I - 20) = 0

I = 20,10

b=10,20