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The perimeter of a rectangular pool is 86 m and its area is 450m² find the dimension of the pool.paano makuha yung quadratic equation? |
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Answer» Answer: Answer: length = 25 m width = 18 m Step-by-step explanation: \begin{gathered}2(l + b) = 86 \\ l + b = 43\\ \\ lb = 450 \\ \\ solving \: these \: equations \: we \: get \\ \\ l + \frac{450}{l} = 43 \\ \\ or \: \: \: { {l}^{2} - 43l + 45}0 = 0 \\ \\ \\ \\ l = \frac{43 + 7}{2} \: \: \:o R \: \: l = \frac{43 - 7}{2} \\ \\ l = 25 \: \: \: or \: \: \: l = 18 \\ \\ b = 43 - 25 = 18 \: \: \: \: or \: \: \: \: b = 43 - 18 = 25 \\ \\ \\ hence \: \: length \: of \: SWIMMING \: pool \: is \: 25 \: \\ and \: width \: of \: swimming \: pool \: is \: 18 \: m\end{gathered} 2(l+b)=86 l+b=43 lb=450 solvingtheseequationsweget l+ l 450
=43 orl 2 −43l+450=0 l= 2 43+7
orl= 2 43−7
l=25orl=18 b=43−25=18orb=43−18=25 hencelengthofswimmingpoolis25 andwidthofswimmingpoolis18m
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