Garden

The square garden area is 2/9 of a triangle garden with sides 160 m, 100 m, and 100 m.

How many meters of fencing are needed to fence a square garden?

Correct answer:

o =  131 m

Step-by-step explanation:

k=92​≐0.2222  a=160≐32.6599 m b=100 m c=b=100 m  h=b2−(a/2)2​=1002−(32.6599/2)2​=60 m S1​=2a⋅ h​=232.6599⋅ 60​=4800 m2  S2​=k⋅ S1​=92​⋅ 4800=92⋅ 4800​=99600​=33200​≐1066.6667 m2  S2​ = a2  a=S2​​=1066.6667​≐32.6599 m  o=4⋅ a=4⋅ 32.6599≐130.6395 m   Verifying Solution:  o2​=2⋅ 2/9⋅ 160⋅ 4⋅ 100⋅ 100−160⋅ 160​​≐130.6395

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You need to know the following knowledge to solve this word math problem:

algebraarithmeticplanimetricsbasic operations and conceptsnumbersUnits of physical quantitiesGrade of the word problem

 
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