Question

each side of a square flower bed is 2m 40cm long. It is extended by making a border 15cm wide all around it. find the area of the border​

Answer 1

Step-by-step explanation:

s=2m40cm

2m40cm=200cm+40cm

=240cm

15 is added to form a border

; 255cm

area of inner sq =240 x 240

=57600cm²

area of outer sq =255 x 255

=65025cm²

area of border = inner sq -outer sq

=65025-57600

=7425cm²