Answered

IDNStudy.com, ang iyong destinasyon para sa maaasahan at pangkomunidad na mga sagot. Ang aming komunidad ay handang magbigay ng malalim at maaasahang mga sagot, anuman ang kahirapan ng iyong mga katanungan.

The perimeter of a rectangular swimming pool is 86 m and its area is 450 m^2. find the dimensions of the pool.

Sagot :

Take note that P = 2L + 2W and A = LW. So, we use the equations: 86 = 2L + 2W --> 43 = L + W and 450 = LW. We use solve for W in terms of L: 43 - L = W --> 450 = L (43 - L) --> 450 = 43L - L^2 --> (L - 25)(L - 18) = 0 --> L = 18, 25. We use L = 25: 43 - 35 = W --> 18 = W. The dimension is 18 m × 25 m.