Question

solve the problems number 7

Answer 1

Answer:

answere is 756 m

Step-by-step explanation:

3 is length of one rod

$3 \times 30 = 90m \: {}^{2}$

area of one road is ready so

2 is the length of second road

$2 \times 30 = 60m {}^{2}$

formula is area of one road +area of secon road - area of same place covered by two roads so

$90m {}^{2} + 60m {}^{2} - {6m}^{2} = {144m}^{2} \\ 30 \times 30 = 900m {}^{2} \\ 900m {}^{2} - 144m {}^{2} = 756$

${900m}^{2} is \: are a \: of \: whole \: square$

now on this basis your area or remaining portion will come by subtracting the area of road from area of whole square