Question

The perimeter of a rectangular field is 240m. If its length is 90 m. Find its length and area

Answer 1

Answer:

$2700 \: {m}^{2}$

Step-by-step explanation:

$perimete = 240 \: m \\ \\ 2(l + b) = 240 \\ \\ l + b = 120 \\ \\ 90 + b = 120 \\ \\ b = 30 \: m \\ \\ area = l \times b \\ = 90 \times 30 \\ \\ = 2700 \: {m}^{2}$