5 lb Chapter 16, question 22

Hey guys, so the answer for this question is 60 and 120 but i was wondering why it cant be 30 as length and width should be considered. please guide, thanks!

Can you please share the screenshot?

hi, im unable to upload a picture. hope this helps

Can you show your calculations?

The problem asks for the possible lengths of the unfenced side. If you consider it as 30, the remaining 3 sides should be 30, 120 and 120 to satisfy the given area of 3600.

Since the sum of these 3 sides (270) exceeds the length of the fence (180) we exclude this option.

Thank youu

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