Question

If the perimeter of a rectangular park is 840 m and its length is 280 m, what
will be its breadth? Also, calculate the area of this rectangular park​

Answer 1

Answer:

b=140

Step-by-step explanation:

perimeter of rectangle =2(l+b)

perimeter of a rectangular park = 840m

so 2(l+b)=840m

l=280m

2(280+b)=840

280+b=840/2

280+b=420

b=420-280

b=140

area of rectangular park =l*b

                                         =280*140

                                         =   39,200

Answer 2

Step-by-step explanation:

perimeter of rectangular park=2[l+b]

840=2[280+b]

840=560+2b

840/560=2b

1.4=2b

0.75=b

area of rectangular park=l*b

=280*0.75

=210